A nurse is preparing to administer liquid famotidine 20 mg PO every 6 hr for GERD. Available is famotidine 40 mg/5 ml. How many ml. should the nurse administer per dose?
(Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["2.5"]
To determine how many milliliters (ml) should be administered per dose, we need to calculate the dose volume using the available concentration of famotidine.
Given:
Famotidine concentration: 40 mg/5 ml
Dose: 20 mg
We can set up a proportion to solve for the volume:
40 mg / 5 ml = 20 mg / x ml
Cross-multiplying the proportion, we get:
40 mg * x ml = 20 mg * 5 ml
Simplifying, we have:
40x = 100
Dividing both sides by 40, we find:
x = 100 / 40
x ≈ 2.5 ml
Therefore, the nurse should administer approximately 2.5 ml of famotidine per dose.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. "I feel so much better after eating."This is most consistent with a duodenal ulcer, where pain is relieved by food (but often returns 2–3 hours later). Gastric ulcers, on the other hand, may worsen with eating.
B. "The pain is worse after I eat a meal high in fat."Fatty food intolerance and postprandial pain are more characteristic of gallbladder disease (cholelithiasis/cholecystitis), not PUD.
C. "The pain radiates down to my lower back."Pain radiating to the back is more typical of pancreatitis, not PUD.
D. "My pain is relieved by having a bowel movement."Relief of abdominal pain with a bowel movement suggests irritable bowel syndrome (IBS), not PUD.
Correct Answer is A
Explanation
Sucralfate is a medication used to treat peptic ulcers by forming a protective coating on the stomach lining. It should be taken on an empty stomach, as food can interfere with its absorption and effectiveness. One hour before breakfast and the evening meal is the correct timing for administering sucralfate, allowing for an empty stomach before meals.
At the time the client takes a proton pump inhibitor: Proton pump inhibitors are a different class of medications used to reduce stomach acid production. It is recommended to administer sucralfate separately, as it works differently and has different administration requirements.
Thirty minutes after breakfast and the evening meal: Administering sucralfate after meals is not ideal, as it may not provide the desired therapeutic effect on an empty stomach.
The time the client takes an antacid: Antacids are also different from sucralfate, and they can interfere with its absorption. It is generally recommended to administer sucralfate separately from antacids.
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