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124 Cards in this Set

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caused by friction or trauma (resolve quickly, painful)

(oral)
acute ulcerations
Aphtha (canker sores)-
hyperkeratosis
white raised patch, not easily removed
Leukoplakia
white raised patch, not easily removed; associated with HIV or EB virus infection – on lateral surface of the tongue)
hairy leukoplakia
Oral candidiasis (thrush)
a white plaque, readily removed and bleeds
squamous cell carcinoma
lesion with persistent bleeding and/or enlarges.
Dysphagia
interruption of bolus transport
Achalasia
lower esophagus does not dilate properly
Odynophagia
painful sensation during swallowing.
Hiatal hernia
protrusion of the stomach above the diaphramatic esophageal opening
Ulcerations of the Upper GI Tract
GERD (gastroesophageal reflux disease)
GU/DU (gastric and duodenal ulcers)
SRMD (stress-related mucosal damage)
NSAIA-induced ulcerations
GERD symptoms
Epigastric, burning pain (“heartburn”) resulting from transient LES relaxation
Most common postprandial
Atypical symptoms
Coughing, hoarseness
Chest pain, pain upon swallowing
Weight loss, anemia
GERD: Diagnosis
Endoscopic evaluation is the gold standard for diagnostics and monitoring the progress of therapy.
GERD: Diet-Disease Interactions
Overeating
Alcohol and smoking
Spices and carminatives
Caffeine and other xanthines
Fatty foods
FASCOS
GERD: Drug-Disease Interactions
Anticholinergics
Opiates
Benzodiazepines
Oral contraceptives
Glucocorticoids
BOGOA
GERD Management
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
Duodenal Ulcer
(duodenal bulb)

Symptoms
Pinpoint epigastric burning pain, weight gain
Duodenal Ulcer
(duodenal bulb)

Onset
1-3 h p meals, relieved by foods
Duodenal Ulcer
(duodenal bulb)

Gastric acid
Normal to High
Gastric Ulcer
(antrum)

Symptom
N&V diffuse pain, weight loss
Gastric Ulcer
(antrum)

Onset
Immediately after meals
Gastric Ulcer
(antrum)


gastric acid
normal to low
PU Disease-Pathogenesis/Prognosis
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).
SRMD: Stress-related mucosal damage
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
SRMD inducers
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
Superficial
Discrete lesions
Located in the duodenum and antrum
Perforation common
Bleeding from major arteries and veins
Peptic Ulcer
c dis chris
super
and
perfomrms
AV
Asymptomatic
Diffuse lesions
Located in acid producing regions
Perforation rare
Bleeding from superficial capillaries
SRMD
superficial
different
asses
acid
rarely perfect
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
Neoplasms of the Stomach can be caused by:
Gastric ulcer predisposition
Genetic factors
Dietary factors
Infectious disease factors
Behavioral disorders that affect eating
anorexia

bulimia
Anorexia nervosa
a personality disorder characterized altered sense of body image and self-induced starvation.
Bulimia
behavioral disorder characterized by binge eating and vomiting.
Normal transit time of small intestine
Transit time – normally 40-180 min
Uncoordinated contractions, obstruction or herniations in small intestine have serious consequences can cause:
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
Osmotic diarrhea
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
Secretory diarrhea
Usually indicates a infectious or parasitic agent, but may be tumor or chemically induced (laxative, etc.)


infectious agents that cause CL flux
Infectious diarrhea
May be viral, bacterial or parasitic. Most often self-limiting, but may be lethal in very old, young or immunosuppressed.
typical virus that can causes changes in gut structure and cause diarrhea
rotavirus
Viral gastroenteritis
rotavirus damage to villae, replacement cells are immature, dysfunctional. May spontaneously resolve, but severe in neonates.
Sprue
an immune reaction toward wheat gluten protein, resulting in villus atrophy, diarrhea and malabsorption. Special diets necessary to avoid atrophic changes.
AIDS and bowel function
infections and Kaposi’s sarcoma can result in malabsorption syndrome – AIDS enteropathy.
AIDS
Sprue
viral gastroenteritis
all cause morphological changes and affect bowel function
Bowel Incontinence
Inability to control bowel movements
Important to distinguish from diarrhea on patient interview



Fecal matter is normal!

cannot control rectal sphincters
Malabsorption-diagnostic tools
Lactose intolerance
Quantitative stool fat
D-xylose
Lactose intolerance diagonostic tool
Challenge the system with lactose –the individual cannot make lactase they will have diarrhea in terms of lactose challenge
qualitative stool fat diagnostic tool
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
D-xylose diagnostic test
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
Malabsorption-Therapeutic Concerns
Assessment of fluid and electrolyte status.
Nutrient absorption (fats, protein, carbs, vitamins, minerals) is impaired.
Inflammatory Bowel Disease
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.
Chron's disease
Regional Enteritis
Fistulas Common

Th1 cytokine activity (enhanced cell-mediated immunity)
TNFα prominent
Smoking exacerbates
Ulcerative Colitis
Diffuse Bleeding
Fistulas Uncommon

Th2 cytokine activity
(enhanced humoral response)

Smoking protects
Bowel Infarction
Mesenteric artery occlusion
bowel infarction can result from:
May result from atherosclerosis (geriatric) or embolism (pediatric/geriatric)
Symptoms of bowel infarction
Symptoms include severe abdominal pain, hypotension, acidosis, fever, blood loss.
ha fab
bowel infarction can lead to:
Leads to ischemia, necrosis and peritonitis…lethal if untreated.
PIN
treatment of bowel infarction
Treatment involves supportive measures and bowel resection.
Adenomatous Polyps
Painless, pre-malignant growths into the lumen of the colon.
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.
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
what should you refer for diagnostic examination (in terms of bowel dz)
bleeding, pain or change in bowel habits
Diverticulosis
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.
symptoms of diverticulosis
Often exhibits as left-sided pain (sigmoid), fever and constipation, with feeling of fullness and lack of appetite.
anti-inflammatory stuff and constipation
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.
repeated episode of diverticulosis can lead to:
Repeated episodes may lead to abcesses, ulceration, scarring transmural adhesions and fistulas.
FASA
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).
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.
Treatment of irritable bowel syndrome
A wide range of therapeutic agents, including antidepressants and anticholinergics may be useful, but not curative.
Hemorrhoid
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
what are hemmoroids associated with/caused by
Associated with pregnancy, aging, heavy lifting and changes in bowel habits (esp when there is a long period of constipation)
treatment of hemmorhoids
If not transient, may be occluded by laser or removed surgically.
3 stages of alcoholic liver disease
fatty liver
alcoholic hepatitis
alcoholic cirrhosis
Fatty liver stage
fatty acid oxidation is impaired, triglycerides are increased



liver impairs fatty acid oxidation
fats stored inside liver as triglycerides (triglyceride globules)
Alcoholic hepatitis
a hepatocellular necrosis with hepatomegaly, jaundice and fever



Cells die
Liver regenerates in a limited manner
Enlarged liver
Fever, jaundice,
Alcoholic cirrhosis
hepatic scarring, collagen formation and diffuse connective tissue replacement.


Liver is firm in consistency./rigid
Problems with scarred liver tissue
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.
which of the 3 stages of alcoholic liver disesase is reversible?
fatty liver
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.
Portal Hypertension:
Ascites
resulting from increased back pressure increases passage of fluid from the hepatic circulation into the intercellular space and peritoneal cavity.
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.
Sequelae of Cirrhosis
Portal hypertension:
1)Splenomegaly
2)Ascites
3)Periotonitis


Liver failure
where is the most dangerous place in the gi tract to get a variscosity
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.
Symptoms of liver failure
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
Symptoms of Liver Failure
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
Progression of liver failure
Progressive and fatal, requiring liver transplantation.
Occurs over many years (as in alcoholic liver disease)
Fluminant hepatic failure
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!!!
Cholelithiasis (gallstones)
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).
if symptoms present, when do most people feel symptoms from gallstones?
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
Cholesterol Stones
> 50% cholesterol
Greater prevalence in women
Excess biliary cholesterol in relationship to bile acid solubilization.
Gallbladder is primary focus of the disease.
Pigment Stones
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.
Pathology of Cholelithiasis
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).
Treatment of cholelithiasis
A variety of surgical methods may be employed to treat these conditions
Hepatocellular adenoma
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
Hepatocellular carcinoma
alcohol/androgen abuse most common indicators, but may be superceded by hepatitis B and C. not readily repaired by surgery. ,

Hepatocellular carcinoma
Type 1 diabetes
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.
Type 2 diabetes
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.
Acute Complications of Diabetes
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.
Pathogenesis of Hyperglycemia
Due to insufficient insulin or insulin resistance.
Reduced ability to move glucose into cells.
Reduced ability to metabolize glucose.
Increased gluconeogenesis
Effects of Hyperglycemia
Hyperosmolality – > 320-330 mosm/L
Polyuria, polydipsia, N&V
Marked fatigue and mental stupor
Coma, if untreated
Ketoacidosis in diabetes results from:
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.
Blood tests for ketoacidosis
Associated with hyperglycemia (>250 mg/dL)
Acidosis - pH < 7.3
Serum bicarbonate - < 15 meq/L
Serum positive for ketones (will see more acetoacetate)
Diabetic Ketoacidotic Coma

symptoms
Comatose
Rapid deep breathing
“Fruity” breath
Hypotension
Tachycardia
What happens if patient slips into ketoacidotic coma?
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.
Hypoglycemia (symptoms)
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.
what is the problem with assessing hyperglycemia and hypoglycemia
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.
Chronic complications with diabetes
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
Why is there an increased of glycosylation in diabetes?
glucose is a reducing sugar; can modify proteins

(a reversible process)
what are amadori products?
rearranged modified protiens --> irreversible
What protein is a good index of glucose control?
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.
Diabetic cataracts
A clouding of the lens (cortical or subcapsular) with impairment of vision.
Linked closely with uncontrolled diabetes and hyperglycemia /hyperlipidemia
Requires surgical intervention
Diabetic retinopathy and cause
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
treatment of diabetic retinopahty
In addition to proper glucose control, laser surgery, smoking cessation, and control of hypertension are essential therapeutic elements.
Glaucoma
Usually tx as the open-angle type.

Neovascularization after cataract removal may convert to closed-angle type.
flow of aquaeous Humor.
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
open angel glaucoma (no restriction to flow)
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.
how does surgery, make glaucoma closed-angle.
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.
Diabetic nephropathy
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
Nephropathy: Characteristics
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.
Diabetic nephropathy: Five stages
Above normal GFR
Microalbuminuria
Albuminuria and hypertension
Increase in serum creatinine, BUN and reduction in GFR
ESRD GFR < 10 ml/min
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.
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.
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.
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.
Skin and Mucous Membrane Lesions
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.
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.