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128 Cards in this Set
- Front
- Back
What is the most common cause of upper GI bleeds?
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Peptic Ulcer Disease
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Peptic ulcer disease is often accompanied by?
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Dyspepsia
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What drug combo can you use to eradicate HP infection?
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Antibiotic and acid suppression or antacid combination
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What drug can enhance gastric mucosa?
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Sulcrafate
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H2 RA's are taken how often?
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Twice daily for 8-12 weeks
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PPI's are taken how often?
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once daily 8-12 weeks
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Discontinuation of what class of drugs will assist in improving PUD?
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NSAIDS
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Sucralfate improves mucosal defense but may impede what?
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Endoscopic exam
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What prophylactic drug can increase prostaglandin defense?
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Misoprostol 200mg QID with meals
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What class of drugs decrease gastric acid?
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PPI's at standard doses or H2RA's at high doses
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What drug or combo should you add concomittantly while reducing NSAIDs dose?
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PPI or misoprostol
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Celecoxib, Rofecoxib, and Valdecoxib are what class of drugs?
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Highly selective COX-2 inhibitors
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Name 3 relative selective COX 2 agents.
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Acetaminophen, salsalate, etodolac
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Is an empiric therapy recommended for management of active HP induced ulcers? What is?
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No, Multi-drug regimen (two, three, or four drug regimen)
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Why is a multi drug regimen chosen? (name a couple)
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1. Anticipated patient adherence
2. Eradication rates 3. Least potential for adverse effects 4. Previous treatment failures 5. Potential drug interactions. |
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In dual drug therapy, Clarithromycin can be combined w/ what 2 drug/drug class?
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PPI or Rantidine
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Amoxicillin can be combine with what drug class?
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PPI
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What causes poor eradication rates?
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Resistance
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When using triple drug therapy, PPI based should include what combo? For how long?
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2 antibiotics and 1 PPI. 10-14 days
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Give an example of a triple drug therapy PPI based combo.
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Amoxicillin & Clarithromycin or metronidazole and any of the zoles: esomeprazole
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When using triple drug therapy, RBC based, what drug classes should be considered?
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2 antibiotics and rantidine (400mg) bid x 14 days.
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Give an example of a triple drug therapy combination.
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Clarithromycin plus amoxicillin or
metronidazole and rantidine or tetracycline and rantidine |
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In quadruple drug therapy, what class of drug is added to the combination of antibiotic and H2RA or PPI?
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Bismuth subsalicylate-based (BSS) and 2 antibiotics like metronidazole PLUS amoxicillin, metronidazole or tetracycline
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What is the % of the US population that is affected by GERD?
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20%
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Does quadruple Drug therapy have a good or poor compliance rate?
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Poor: too many drugs!
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What is the mechanism of GERD?
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A defective lower esophageal sphincter pressure
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What causes excess gastric volume, pylorus obstruction pregnancy, tight clothing?
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Increased intra-abdominal pressure
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In GERD, is their an increase in tone, or a loss of tone?
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GERD occurs due to a loss of tone in the esophageal sphincter
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What are some names of drugs that can increase risk of GERD?
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Anticholinergics, antiparkinsonian, CCB, Benzodiazipines, Estrogens, progesterones, Narcotics, NSAIDS, Nicotine, Nitrates, xanthines
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Your patient presents with the following symptoms: Hoarseness, weightloss, wheezing, bleeding, and non-cardiac chest pains. What are these symptoms characteristic of?
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Atypical symptoms of GERD
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Name some typical symptoms of GERD.
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Belching, heartburn, regurgitation of gastric contents, hypersalivation.
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Visible damage to the mucosa upon endoscopy can be seen as a complication of untreated GERD. What is this disease called?
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Erosive esophagitis and strictures
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Metaplasia resulting in replacement of stratified squamous epithelium with columnar glandular cells may occur with untreated GERD. What is this disease called?
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Barretts esophagus
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What condition may predispose a patient as much as 24%, to esophageal cancer?
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Untreated GERD that has lead to Barretts esophagus
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Esophageal adenocarcinoma risk is 8x higher in patients with what symptoms?
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Heartburn, regurgitation or both alteast once a week.
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Out of 13,900 annual diagnoses of esophageal adenocarcinoma,how many are expected to die?
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13,000
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What is the 5 year survival rate with esophageal adenocarcinoma?
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13%
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What is the cornerstone of therapy for esophageal adenocarcinoma?
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Acid suppresion with medication management
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Metoclopramide binds to what type of receptor and is considered what type of agent?
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Dopamine antagonist; prokinetic agent
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What is the MOA of metoclopramide?
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1. Increased gut motility 2. increased LES resting tone
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CNS depressants like ETOH and benzodiazipines can cause drug interactions with what agents?
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Prokinetic agents
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Your patient presents with a history of seizures, and bowel obstruction, a pheochromoctoma, what drug should be avoided in this patient?
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Metoclopramide?
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The combination of insulin and metoclopromide can cause what?
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Altered food absorption
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The use of metoclopramide can cause what type of SE in the pediatric and elderly patient population?
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Parkinsonian syndrome
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What are the MOA of antacids?
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They neutralize pH of stomach acid within the lumen
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What are some adverse effects of antacids?
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Diarrhea or constipation, mineral deficiencies and gastric acid rebound with chronic use, acid base disturbances and electrolyte imbalances in renal insufficiency
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Are there any absolute contraindication to antacids?
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No
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Anatacids have many drug interactions with what medications?
What do these drugs do? |
Tetacyclines, quinolones, antibiotics, ketoconazole, digoxin, indomethacin, ferrous sulfate, isoniazid. Decrease absorption
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What is the drawback to antacids?
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Frequent adminstration q1-2hrs
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What is the MOA of H2 receptor antagonist?
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Decrease acid secretion by competitive inhibition of histamine receptors in gastric parietal cells
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What is a contraindication for H2 receptor antagonists?
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Renal insufficiency
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Drugs like warfarin, theophylline, diazepam, phenytoin, metronidazole, propanolol all do what when combining them with an H2 antagonist?
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They increase the effects of the drugs; cimetidine increases rantidine
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What are some draw backs to H2 antagonist? (2)
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Tachyphylaxis, increase CNS effects in elderly
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In stage I management of GERD, antacids like tums, maalox, gaviscon, or what other drug class can be initiated?
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H2 RA's or omeprzole
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In stage II -III, what medication would you place your patient on?
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H2RA's or PPIs
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When do you treat empiracally?
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For typical symptoms
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For moderate to severe symptoms of GERD, what drug class should you start your patient on?
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PPI's
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What prostaglandin analog, inhibits acid and protects mucosa, reducing ulcers related to NSAIDS?
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Misoprostol
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What GU SE does misoprostol cause?
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Uterine contractions!
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Bismuth compound can reduce stool requency, and does what to ulcers?
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Coats them
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What drug can blacken stool and tongue?
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Colloidal bismuth compund or Bismuth subsalicylate
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What are some CNS SE of bismuth?
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Ataxia, H/A, confusion, seizures
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An example of a bulk forming laxative that absorbs water, and promotes peristalsis is?
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Psyllium
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What type of laxative may lead to dependence? Give some examples of these.
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Stimulants like aloe, senna, castor oil
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Your patient has just taken senna and aloe. When do you anticipate a BM?
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6-12 hours
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MOM, sorbitol, and lactulose are all what type of laxatives?
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Osmotic laxatives
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When is the onset of action typically seen in osmotic laxatives?
Caution with what? |
1-3 hours. Caution with electrolyte abnormalities
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Polyethylene glycol is used prior to procedures. How is it mixed and administered?
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4 liters of fluid over 2-4 hours
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Castor oil is considered what type of laxative?
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A stimulant
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Mineral oil is considered what type of laxative?
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stool softner
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Stool softners on a long term use can affect what nutritional status?
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Impair absorption of fat soluble vitamins (ADEK)
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Antidiarrhearls have what type of effect? What receptors do they inhibit?
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Opiod effects. They inhibit cholinergic receptors
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Somatostatin AKA ___ is a naturally occuring peptide in the GI tract.
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Octreotide
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What are some clinical uses for octreotide?
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1. Inhibitor of endocrine tumor effects, 2. Diarrhea; at low doses stimulates motility, and high doses inhibits motility
3. GI bleed |
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What are some adverse effects of octreotide?
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Fat soluble vitamin deficiency
Gallstones Hypothyroidism Bradycardia |
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Where in the world is the highest rate of IBD? (Crohns and UC)
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Scandinavia
Great Britian North America |
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Rectal bleeding is a common symptom of which IBD?
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Crohns
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Skin lesions and eye involvement is seen in which IBD?
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UC
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Which IBD involves the ENTIRE GI tract?
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Crohns
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Which IBD involves the rectum and colon only?
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UC
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Aminosalicylates like Mesalamine has antiinflammatory properties and contains what?
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5 ASA only
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Which aminosalicylate comes in enema form?
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Rowasa 4g/60ml q 8hrs
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Azathioprine/Imuran is considered what class of drug?
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An immunosuppressant
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Azathioprine decrease metabolism of what?
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Purines
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What is important to teach patients about Azathioprine?
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That response may take several months.
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Because Azathioprine is an immunosuppresant drug, what are some adverse effects?
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Rash, nausea, diarrhea, and neutropenia
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6-MP is a cell cycle specific antineoplastic drug that may also take several months to work. What are SE?
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Similar to Azathioprine; rash, nausea, diarrhea, neutropenia
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6 bloody stools a day, and signs of toxicity is a ___ stage in UC.
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Severe
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<4 stools and no systemic disturbance
>4 stools/day min systemic disturbance |
Mild
moderate |
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Hypoalbuminuria, leukocytosis, fever and tachycardia are all signs and symptoms of what disease process?
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Toxic megacolon
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What is toxic megacolon?
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Acute dilation of colon-severe attack of colitis
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Aminosalicylate and metronidazole are the treatment for mild ___
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CD
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For mild UC, what 2 other treatments can be used
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Steroid enema and oral steroids
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What are the 2 symptoms that differ between UC and CD?
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In UC, eye involvement and skin lesions may be involved.
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Azathiorprine, oral steroid, 6-MP, Methotextrate, and infliximab are the treatment regimen for moderate?
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CD (MIA O6)
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What is the treatment regimen for moderate UC?
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None
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IV steroids, IV cyclosporines and surgery are the treatment regimens for severe?
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BOTH CD and UC
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Zelnorm is considered the ___ line treatment option for IBS?
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3rd
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What receptors does Zelnorm bind to?
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Selective serotonin AGONIST (5HT4)
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Zelnorm is used only on what gender?
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Female
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What are some complicated side effects of zelnorm?
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Abdominal pain, and increased risk of cholecystectomies, diarrhea, H/A
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Zelnorm is contraindicated in whom?
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Renal or hepatic impairment, gallbladder disorders and bowel obstruction
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Your pt presents to the office with c/o IBS. You want to order a first line treatment for her. What would you recommend?
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1 TBS of fiber with EACH meal
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Your pt with IBS has tried fiber, and now is wanting something more. What can you recommend as 2nd line treatment?
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A laxative or an antispasmodic
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If your pt has diarrhea IBS, what can you offer as first line management?
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Diet modications like lactose free, caffeine free
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Loperamide and other antispasmodics are considered what line management in diarrhea IBS?
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2nd line management
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Adminstering alosetron in the management of Diarrhea IBS, 3rd line treatment can increase the incidence of?
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Perforarted bowel
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Zelnorm/Tegaserod differs from Alosetron because Alosetron is a selective serotonin ___.
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Antagonist
Zelnorm is a serotonin agonist |
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What is a major SE of Alosetron?
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Severe constipation with bowel obstruction!!!!
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Immodium, Lomotil, and cholestyramine are all used for the maangement of?
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Diarrhea predominant IBS
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Lomotil/Dipendoxylate with atropine cause what types of SE?
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Anticholinergic side effects: blurred vision, Dry mouth, etc.
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Bentyl and Hyoscyamine are used for the the ___ managment of IBS.
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Pain management of IBS
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Low dose of TCA or SSRI are used for what 2 things?
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To relieve pain and diarrhea.
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TCA should be avoided in patients who are?
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TCA=C=Constipated
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Bentyl reduces fluid in the bowel because it acts as an?
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Anticholinergic
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The release of serotonin as well as the stimulation of the chemoreceptors ,vestibular, and stress can all induce what?
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Vomitting
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What antiemetic agents are used for acute chemotherapy associated N/V and post op or post radiation N/V
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Serotonin 5HT3 ANTAGONSIT
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Which 5HT3 antagonist has the longest half life?
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Palonesetron (lon 1/2 life)
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5HT3 antagonist can cause what cardiac complication?
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QT Prolongation
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Ondansetron, Granisetron and dolasetron have a short or long 1/2 life?
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GOD a short life...1/2 life that is :)
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Neurokinin receptor antagonist like Aprepitatn, commonly used with cisplatin permeates the ___ __ ___ and inhibits what?
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Neuro=blood brain barrier, and inhibits CYP 450 metabolism
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Inhibition of CYP450 metabolism with increase or decrease INR if on warfarin?
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Inhibit=decrease INR
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Phenothiazines and Butyrophenones are antipsychotics, and inhibit both ___ and ___ receptors.
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Dopamine and muscarinic receptors
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Inhibition of dopaminergic receptors like with the use of phenothiazine, butyrophenones , prochorperazine, promethazine, droperidol, all can cause hypotension, prolong QT, and?
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cause Extrapyramidal SE
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What antiemetic causes QT prolongation the most?
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Droperidol
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Metoclopramide, a benzamide, blocks what receptors?
What are potential SE due to these receptor blockers? |
Dopamine receptor blockers.
EPS is a SE |
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Dronabinol is a ___ aka as an antiemetic and an ___ stimulant.
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Cannibinnoid. Appetite stimulant
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SE of cannabinoids like Dronabinol are euphoria, dysphoria, sedation, hallucination, increased appetite and?
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Dry mouth
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