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124 Cards in this Set
- Front
- Back
- 3rd side (hint)
caused by friction or trauma (resolve quickly, painful)
(oral) |
acute ulcerations
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Aphtha (canker sores)-
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hyperkeratosis
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white raised patch, not easily removed
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Leukoplakia
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white raised patch, not easily removed; associated with HIV or EB virus infection – on lateral surface of the tongue)
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hairy leukoplakia
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Oral candidiasis (thrush)
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a white plaque, readily removed and bleeds
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squamous cell carcinoma
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lesion with persistent bleeding and/or enlarges.
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Dysphagia
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interruption of bolus transport
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Achalasia
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lower esophagus does not dilate properly
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Odynophagia
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painful sensation during swallowing.
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Hiatal hernia
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protrusion of the stomach above the diaphramatic esophageal opening
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Ulcerations of the Upper GI Tract
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GERD (gastroesophageal reflux disease)
GU/DU (gastric and duodenal ulcers) SRMD (stress-related mucosal damage) NSAIA-induced ulcerations |
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GERD symptoms
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Epigastric, burning pain (“heartburn”) resulting from transient LES relaxation
Most common postprandial Atypical symptoms Coughing, hoarseness Chest pain, pain upon swallowing Weight loss, anemia |
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GERD: Diagnosis
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Endoscopic evaluation is the gold standard for diagnostics and monitoring the progress of therapy.
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GERD: Diet-Disease Interactions
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Overeating
Alcohol and smoking Spices and carminatives Caffeine and other xanthines Fatty foods |
FASCOS
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GERD: Drug-Disease Interactions
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Anticholinergics
Opiates Benzodiazepines Oral contraceptives Glucocorticoids |
BOGOA
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GERD Management
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Weight loss
Reduce alcohol and cigarette smoking Raise the head of the bed to increase esophageal clearance Not eating within 3 h of bedtime |
ojay
weight alcohol/cigarettes eating bed |
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Duodenal Ulcer
(duodenal bulb) Symptoms |
Pinpoint epigastric burning pain, weight gain
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Duodenal Ulcer
(duodenal bulb) Onset |
1-3 h p meals, relieved by foods
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Duodenal Ulcer
(duodenal bulb) Gastric acid |
Normal to High
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Gastric Ulcer
(antrum) Symptom |
N&V diffuse pain, weight loss
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Gastric Ulcer
(antrum) Onset |
Immediately after meals
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Gastric Ulcer
(antrum) gastric acid |
normal to low
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PU Disease-Pathogenesis/Prognosis
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Most forms dependent upon H. pylori, but <10% due to systemic disease.
H. pylori infection verified by biopsy, culture and urease activity Characterized by discrete ulcerative lesions which may spontaneously heal or rupture (with increased mortality). |
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SRMD: Stress-related mucosal damage
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A systemic response to stress (an intensive care unit disorder)
May resolve upon treatment of primary disease, but requires aggressive treatment to prevent blood loss, mucosal damage, and reduce mortality. under stress = cortisol levels will sky rocket |
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SRMD inducers
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CNS injury
Mechanical ventillation Putting someone on a mech ventilator –really stressful and raises cortisol levels Coagulopathy Effect the lining of the gut and anything in cntact with acid will be at risk to develop ulceration Extensive burns Result in stress related ulcers Sepsis, trauma, shock Stress related ulcer |
MC CB STS
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Superficial
Discrete lesions Located in the duodenum and antrum Perforation common Bleeding from major arteries and veins |
Peptic Ulcer
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c dis chris
super and perfomrms AV |
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Asymptomatic
Diffuse lesions Located in acid producing regions Perforation rare Bleeding from superficial capillaries |
SRMD
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superficial
different asses acid rarely perfect |
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Characterized as a mix between SRMD and PU disease
Misoprostol restores prostaglandins decreased by NSAIAs, may reverse damage. Due to a depression of Prostaglandins |
NSAIA-induced gastric damage
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Neoplasms of the Stomach can be caused by:
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Gastric ulcer predisposition
Genetic factors Dietary factors Infectious disease factors |
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Behavioral disorders that affect eating
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anorexia
bulimia |
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Anorexia nervosa
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a personality disorder characterized altered sense of body image and self-induced starvation.
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Bulimia
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behavioral disorder characterized by binge eating and vomiting.
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Normal transit time of small intestine
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Transit time – normally 40-180 min
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Uncoordinated contractions, obstruction or herniations in small intestine have serious consequences can cause:
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Nausea and vomiting
Cramping or sharp pain Peritonitis Fever and sepsis Transit time is very rapid in the small intestine –reason is because it is not to be a storage place it is designed for processing So anything that causes food or anything to get hung up in the SI that can lead to serious symptoms |
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Osmotic diarrhea
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Poorly absorbed solutes
Decreased digestive capacity hypertonic solution in the lumen of the gut –increased volume increase peristalsis increased diarrhea eg. unabsorbed phosphates Decreased digestive capacity –cant process di or tri saccahrides –water can be drawn in and diarrhe |
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Secretory diarrhea
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Usually indicates a infectious or parasitic agent, but may be tumor or chemically induced (laxative, etc.)
infectious agents that cause CL flux |
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Infectious diarrhea
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May be viral, bacterial or parasitic. Most often self-limiting, but may be lethal in very old, young or immunosuppressed.
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typical virus that can causes changes in gut structure and cause diarrhea
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rotavirus
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Viral gastroenteritis
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rotavirus damage to villae, replacement cells are immature, dysfunctional. May spontaneously resolve, but severe in neonates.
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Sprue
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an immune reaction toward wheat gluten protein, resulting in villus atrophy, diarrhea and malabsorption. Special diets necessary to avoid atrophic changes.
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AIDS and bowel function
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infections and Kaposi’s sarcoma can result in malabsorption syndrome – AIDS enteropathy.
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AIDS
Sprue viral gastroenteritis |
all cause morphological changes and affect bowel function
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Bowel Incontinence
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Inability to control bowel movements
Important to distinguish from diarrhea on patient interview Fecal matter is normal! cannot control rectal sphincters |
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Malabsorption-diagnostic tools
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Lactose intolerance
Quantitative stool fat D-xylose |
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Lactose intolerance diagonostic tool
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Challenge the system with lactose –the individual cannot make lactase they will have diarrhea in terms of lactose challenge
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qualitative stool fat diagnostic tool
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Quantitiative stool fat –if fat is not absorbed or emulsifyed then a lot of it will show up in the feces –malabsorption some form of digestive problem
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D-xylose diagnostic test
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If u want to know if it’s a structural problem –you have to see if there is a biochemical problem D-xylose –sugar that is well absorbed but not readily metabolized –can measure readily in urine and in the blood so many hours after administration
If something is structurally wrong with the gut then it will not be readily absorbed then it willl not show up in the urine and the blood –we have now isolated the problem to a structural problem |
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Malabsorption-Therapeutic Concerns
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Assessment of fluid and electrolyte status.
Nutrient absorption (fats, protein, carbs, vitamins, minerals) is impaired. |
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Inflammatory Bowel Disease
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Chron's and Ulcerative colitis
Genetic and microbial-based factors involved in an autoimmune disorder against intestinal mucosa. Both are characterized by bleeding and/or pain upon eating/defecation. |
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Chron's disease
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Regional Enteritis
Fistulas Common Th1 cytokine activity (enhanced cell-mediated immunity) TNFα prominent Smoking exacerbates |
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Ulcerative Colitis
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Diffuse Bleeding
Fistulas Uncommon Th2 cytokine activity (enhanced humoral response) Smoking protects |
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Bowel Infarction
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Mesenteric artery occlusion
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bowel infarction can result from:
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May result from atherosclerosis (geriatric) or embolism (pediatric/geriatric)
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Symptoms of bowel infarction
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Symptoms include severe abdominal pain, hypotension, acidosis, fever, blood loss.
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ha fab
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bowel infarction can lead to:
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Leads to ischemia, necrosis and peritonitis…lethal if untreated.
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PIN
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treatment of bowel infarction
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Treatment involves supportive measures and bowel resection.
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Adenomatous Polyps
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Painless, pre-malignant growths into the lumen of the colon.
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Adenomatous Polyps are most commonly seen in:
how is it screened what is an indication of malignant transformation? |
Most common in men/women > 40 yoa
Screening by endoscopy important (esp. > 50 yoa) Polyps always removed, since they are pre-malignant lesions and ulceration may indicate malignant transformation. |
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Colorectal Cancer
what signs can indicate cancer? dianostic technques? |
Any rectal bleeding, pain or change in bowel habits should be referred for diagnostic examination.
Digital examination of the rectal canal important, but limited diagnostic screen – endoscopy an important tool |
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what should you refer for diagnostic examination (in terms of bowel dz)
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bleeding, pain or change in bowel habits
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Diverticulosis
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Small outpouchings of the colon – common in the sigmoid, increased in low fiber diets.
Fecal impaction, seeds and nuts may lodge into these spaces resulting in an acute inflammatory condition-diverticulitis. |
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symptoms of diverticulosis
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Often exhibits as left-sided pain (sigmoid), fever and constipation, with feeling of fullness and lack of appetite.
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anti-inflammatory stuff and constipation
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treatment for diverticulosis
decrease of incidence |
Antibiotics and a bland liquid diet (with watchful waiting) useful for mild exacerbations.
Avoidance of triggers, increase in fiber and regular bowel movements may decrease incidence. |
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repeated episode of diverticulosis can lead to:
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Repeated episodes may lead to abcesses, ulceration, scarring transmural adhesions and fistulas.
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FASA
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Appendicitis
acute vs chronic |
inflammation of the appendix
Acute – inflammation, ulceration and perforation a medical emergency. Nausea and vomiting common. Diarrhea is rare. Reflexive pain upon abdominal compression and release. Chronic – an inflammatory process with increasing pain (other symptoms may be present or absent). |
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Irritable Bowel Syndrome
what is it what is it caused by |
Abdominal pain, commonly with either decreased or increased GI motility and spasm.
Associated with changes in dietary, emotional or environmental status. |
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Treatment of irritable bowel syndrome
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A wide range of therapeutic agents, including antidepressants and anticholinergics may be useful, but not curative.
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Hemorrhoid
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Masses of areolar rectal tissue with numerous arteries and veins, may become inflammed, bleed and are extremely painful.
Can show up with any ethnic or age group |
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what are hemmoroids associated with/caused by
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Associated with pregnancy, aging, heavy lifting and changes in bowel habits (esp when there is a long period of constipation)
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treatment of hemmorhoids
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If not transient, may be occluded by laser or removed surgically.
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3 stages of alcoholic liver disease
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fatty liver
alcoholic hepatitis alcoholic cirrhosis |
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Fatty liver stage
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fatty acid oxidation is impaired, triglycerides are increased
liver impairs fatty acid oxidation fats stored inside liver as triglycerides (triglyceride globules) |
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Alcoholic hepatitis
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a hepatocellular necrosis with hepatomegaly, jaundice and fever
Cells die Liver regenerates in a limited manner Enlarged liver Fever, jaundice, |
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Alcoholic cirrhosis
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hepatic scarring, collagen formation and diffuse connective tissue replacement.
Liver is firm in consistency./rigid |
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Problems with scarred liver tissue
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Good tissue before and replacing with connective so can’t do regular metabolism.
Hemodynamic problem – nice filter is now full of connective tissue and pressure inside organ system increases getting portal hypertension. |
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which of the 3 stages of alcoholic liver disesase is reversible?
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fatty liver
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Portal Hypertension:
Splenomegaly and varices |
enlargement of the spleen (splenomegaly) and varices (like varicose veins in the gi tract)
due to increased back pressure due to obstruction. |
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Portal Hypertension:
Ascites |
resulting from increased back pressure increases passage of fluid from the hepatic circulation into the intercellular space and peritoneal cavity.
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Portal hypertension
Peritonitis |
stasis of blood flow may allow bacteria to gain entry into the peritoneum and circulation.
The liver sweats – ultrafiltrate of plasma; will drain from the liver into the peritoneal cavity. b/c you aren’t getting good distribution, the cells that are normally phagocytotic (kupfer cells); won’t see bacteria and bac can end up in the peritoneal cavity leading to peritonitis. Will result in sepsis. |
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Sequelae of Cirrhosis
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Portal hypertension:
1)Splenomegaly 2)Ascites 3)Periotonitis Liver failure |
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where is the most dangerous place in the gi tract to get a variscosity
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Most dangerous of variscosities are in the esophagus b/c it is the thinnest of the tubes in the gi tract, so venous system is weak and less supported physically. As back pressure occurs into the gi tract, the veins in the esophagus start to enlarge and they start to protrude into the lumen of the esophagus. When they enlarge, its just by pressure. b/c of the pressure from eating, they can pop and bleed. You can actually bleed to death.
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Symptoms of liver failure
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Fatigue due to inability of liver to process waste products and other nutrients systemically.
advanced stages = comatose Nausea and diarrhea: inability to process nutrients, the body rejects enteric nutrition. Jaundice: inability to metabolize heme and bilirubin |
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Symptoms of Liver Failure
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Bleeding: lack of clotting factor synthesis.
Edema and ascites: decreased production of plasma proteins necessary to sustain proper colloid osmotic pressure and activation of the renin-angiotensin system. Hepatic encephalopathy: ranging from mild confusion to coma, resulting from inability to process intestinal ammonia and mercaptans. |
BEAHE
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Progression of liver failure
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Progressive and fatal, requiring liver transplantation.
Occurs over many years (as in alcoholic liver disease) |
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Fluminant hepatic failure
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can occur with acetaminophen overdose (within an 8 week period)
Acetaminophen overdose significant damage within hours Even w/ successful overdose management, hepatic failure can continue to take place and req liver transplant w/in 8 weeks. This is very RAPID!!! |
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Cholelithiasis (gallstones)
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Formed in gallbladder due to precipitation of cholesterol and other bile tract components (bilirubinates, calcium, etc)
May grow to large size stones, over years to decades, with or without symptoms (pain after meals, most common). |
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if symptoms present, when do most people feel symptoms from gallstones?
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Most common problem fat within meal stimulates cholecystikinin which causes bile duct contraction, necessary for the body to respond to the fat so it can send emulsifying agents through the bile to aid in digestion.
If eat a large fatty meal, the gall bladder will start to contract, and they will feel the pain. The pain seems cardiac in origin (peristernal pain). Tightness in the chest |
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Cholesterol Stones
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> 50% cholesterol
Greater prevalence in women Excess biliary cholesterol in relationship to bile acid solubilization. Gallbladder is primary focus of the disease. |
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Pigment Stones
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Black pigment (calcium bilirubinate) – hemolysis and cirrhosis may be predisposing factors.
Brown pigment (calcium bilirubinate with salts of fatty acids) higher incidence in Asia, pathogenesis is highly debated. |
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Pathology of Cholelithiasis
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Obstruction (pain, nausea and vomiting) due to increased contraction pressure of the gallbladder after meals.
If obstruction blocks the opening to the pancreas, pancreatitis may result (flank pain, nausea, increase in serum amylase and lipase). |
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Treatment of cholelithiasis
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A variety of surgical methods may be employed to treat these conditions
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Hepatocellular adenoma
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Adenoma- isolated tissue sites within the liver, can grow in size, generally benign, if grow larger they can be a liver fxn problem b/c of their size and not malignancy. You have to have surgical procedure to remove them.
Female prevalence Most commonly associated with oral contraceptive use Usually benign, may present a liver function problem if progressive |
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Hepatocellular carcinoma
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alcohol/androgen abuse most common indicators, but may be superceded by hepatitis B and C. not readily repaired by surgery. ,
Hepatocellular carcinoma |
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Type 1 diabetes
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Type 1 - insulin deficiency, induced by an autoimmune reaction.
Genesis of type I autoimmune rxn; individuals affected at early age; reject own pancreatic islets; fundamental pathology b/c many immunosuppressants can delay the onset of this diabetes Insulin by far improves type 1. |
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Type 2 diabetes
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Type 2 - insulin resistance, genetic and age-related factors, may include a defect in insulin release.
Most of the problems that you’ll see have to do with type II disease of insulin resistance. Genetic and age related factors. |
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Acute Complications of Diabetes
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Hyperglycemia - inability to normalize blood glucose, a natural consequence of diabetes
Ketoacidosis - insulin deficiency and increased glucagon leads to increased ketogenesis (more common in Type 1). Hypoglycemia - usually due to improper management of antidiabetic therapy. |
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Pathogenesis of Hyperglycemia
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Due to insufficient insulin or insulin resistance.
Reduced ability to move glucose into cells. Reduced ability to metabolize glucose. Increased gluconeogenesis |
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Effects of Hyperglycemia
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Hyperosmolality – > 320-330 mosm/L
Polyuria, polydipsia, N&V Marked fatigue and mental stupor Coma, if untreated |
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Ketoacidosis in diabetes results from:
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Results from increased peripheral lipolysis and hepatic ketogenesis due to insulin deficiency (primarily Type 1).
etone bodies contain ketone elements that are derived from the citric acid cycle. These ketone bodies are increased due to the increased peripheral lipolysis. Generally the increased peripheral lipolysis is due to a deficit in insulin. Insulin is high = reduce lipolysis. If insulin is normal or high reduction in lipolysis. If it is low, you INCREASE it. There is also glucagon which tends to be normal or slightly elevated. This stimulates hepatic ketogenesis. This typically occurs in type I. In late stages of type II you will see this. |
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Blood tests for ketoacidosis
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Associated with hyperglycemia (>250 mg/dL)
Acidosis - pH < 7.3 Serum bicarbonate - < 15 meq/L Serum positive for ketones (will see more acetoacetate) |
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Diabetic Ketoacidotic Coma
symptoms |
Comatose
Rapid deep breathing “Fruity” breath Hypotension Tachycardia |
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What happens if patient slips into ketoacidotic coma?
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Rapid deep breathing, the body responds by trying to blow off these ketone bodies. Desperately trying to get rid of it. Can detect it via fruity breath (from acetone elimination). Hypotensive, tachycardia.
Autonomic nervous system response will respond hypotension and tachycardia. Acidosis Generally results from HYPERglycemia. |
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Hypoglycemia (symptoms)
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Mental confusion, behavioral disorders
Tachycardia, palpitations, sweating, tremors Nausea and hunger Coma and convulsions activation of autonomic nervous system to generate MORE glucose. Not enough glucose for brain to function adequately. Lack of glucose causes mental stupor vs hyperglycemia, it was an osmolality problem. Individuals will have palpitations, sweat, tremors. Behavioral disorders will recognize that they are becomgin hypoglycemia. Very nervous, edgy. Before they slip into coma, what can reverse it is sugar. Something sweet with lots of glucose can reverse it very readily. If you do not treat hypoglycemia, can lead to coma and irrerversible brain damage. |
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what is the problem with assessing hyperglycemia and hypoglycemia
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they look the same
If see someone with these symptoms, it is very important to assess glucose status before you give insulin. Insulin is a very potent drug. |
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Chronic complications with diabetes
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Related to glycosylation of membrane proteins over time (assessment of glycosylated proteins (Amadori products); hemoglobin A1c over time is indirect index of glycemic control over 2-3 months).
Interference with membrane function through alterations in myoinositol disposition in neurons. Increased glucose is converted to sorbitol, decreases myoinositol content and reduction in effective nerve conduction. Excessive gluconeogenesis and interference with cellular metabolism. |
GSG
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Why is there an increased of glycosylation in diabetes?
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glucose is a reducing sugar; can modify proteins
(a reversible process) |
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what are amadori products?
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rearranged modified protiens --> irreversible
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What protein is a good index of glucose control?
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One way to look at a stable protein in the system for a long period of time hemoglobin. Hemogloin inside RBC stays in the system for a period of 3 months. Time element is very good. RBC ciruclated every 3-4 months, so as the live, the accumulate glucose add-ins . This can be an index of glucose control.
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Diabetic cataracts
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A clouding of the lens (cortical or subcapsular) with impairment of vision.
Linked closely with uncontrolled diabetes and hyperglycemia /hyperlipidemia Requires surgical intervention |
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Diabetic retinopathy and cause
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A leading cause of blindness in diabetes
Usually due to vascular problems associated with the retina (microaneurysms, edema hemorrhages, infarction, and proliferation of new vessels). |
Nwheni
new vessles hemmorhage edema micaroaNurisms infarction |
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treatment of diabetic retinopahty
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In addition to proper glucose control, laser surgery, smoking cessation, and control of hypertension are essential therapeutic elements.
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Glaucoma
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Usually tx as the open-angle type.
Neovascularization after cataract removal may convert to closed-angle type. |
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flow of aquaeous Humor.
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Starts with the ciliary body, it is formed and separates between the lens (right in front of it) to protect it, escapes though pupil and and into anterior chamber to the trabecular meshwork
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open angel glaucoma (no restriction to flow)
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Hyperglycemia increases the amount and pressure of fluid that is generated by ciliary body. More glucose associated with it. Increases the pressure with the system. If you increase the pressure in this system, what that does if forcers the lens back on to the retina. Increased pressure
Check intraocular pressure and see if it is normal. Typically good for open ankle. |
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how does surgery, make glaucoma closed-angle.
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With surgery, it can make it closed-angle. If there is cataracts and remove them from the lens, the tissue and repair mechanism will cause the region to form connective tissue. This is not killing the ciliary body. The cilliary body continues to produce aqueous humor. As it produces more and more there is insufficient draining. That can cause a dramatic build up in pressure more so than open angle. An individual can go blinding within days. Have to be careful about surgery. Many things are happening to the eye.
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Diabetic nephropathy
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Results in End-stage renal disease; a major cause of death in Type 1 and 2.
Hyperglycemia and increased vascular pressure damage the glomerulus and nephron |
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Nephropathy: Characteristics
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Initially exhibited as microalbuminuria (>20 ug/min).
Progressive proteinuria with increased renal failure (even with decreased creatinine clearance), a unique form of renal failure. ACE inhibitors/angiotensin antagonists and dietary protein restriction is beneficial - in later stages more so than normoglycemic control. Angiotensin increases the accumulation of extracellular matrix proteins in the glomerulus, resulting in glomerular damage. |
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Diabetic nephropathy: Five stages
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Above normal GFR
Microalbuminuria Albuminuria and hypertension Increase in serum creatinine, BUN and reduction in GFR ESRD GFR < 10 ml/min |
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Foot ulcerations
Etiology treatment |
Etiology includes neuropathy as well as vascular disease.
In addition to glycemic control, increased attention to foot care is absolutely essential for prevention and treatment. Smoking cessation required for prevention and tx, as well as platelet-derived growth factor for ulcers refractory to debridement and antibiotics. |
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Diabetic Neuropathy
Peripheral |
includes polyneuropathy with desensitization, isolated neuropathy, and painful diabetic neuropathy.
Impaired sensory perception (pain, temperature, vibration) increases chances of unnoticed trauma. May be isolated and associated with vascular ischemia. Hypersensitivity to touch and burning pain in the evening. |
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diabetic neuropathy
autonomic GUDOH |
gastroparesis, diarrhea, postural hypotension, urinary retention
Gastroparesis - damage to vagus leading to inadequate gastric emptying. Diarrhea - damage to ganglia leads to unopposed residual vagal tone and increased intestinal secretions and motility. Postural hypotension - decreased vascular responsiveness. Urinary retention - inadequate voiding pressure and increased sphincter tone. |
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How does diabetes result in
Erectile dysfunction |
Combination of a neuropathy and vascular disease
Decreased parasympathetic tone - a neuropathic feature occurs early. Vascular occlusion - decreased ability of blood to fill the corpus. |
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Skin and Mucous Membrane Lesions
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Increased fragility of the vasculature, (in part due to hyperglycosylation) leading to increased damage and bleeding.
Decreased perfusion due to vascular occlusion, impaired wound healing response. Increased glucose as substrate for bacterial and fungal infections. |
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How does diabetes cause
Cardiovascular disease |
Hyperlipidemia and coronary artery disease - results from peripheral hepatic impairment of cholesterol extraction and increased peripheral deposition (related to hyperglycemia).
Hypertension - may be related to alterations in peripheral and central control mechanisms and membrane structures. |
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