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The physician orders a patient with a duodenal ulcer to take a UREA breath test. Which lab value will the test measure to determine if
H. Pylori is present?

A.

Ammonia

B.

Hydrochloric Acid

C.

Potassium

D.

Carbon Dioxide

Answer and Explanation

The Correct Answer is D

Choice A rationale
The UREA breath test does not measure ammonia levels. While H. pylori can convert urea to ammonia and carbon dioxide, the test specifically measures the level of carbon dioxide in the breath.
Choice B rationale
The UREA breath test does not measure hydrochloric acid. Hydrochloric acid is produced by the stomach to aid in digestion, but it is not measured in the UREA breath test.
Choice C rationale
The UREA breath test does not measure potassium. Potassium is an important electrolyte in the body, but it is not related to the presence of H. pylori or the UREA breath test.
Choice D rationale
The UREA breath test measures carbon dioxide in the breath.
 
H. pylori bacteria break down urea into ammonia and carbon dioxide. Excess carbon dioxide in the breath is a sign of an H. pylori infection.
 


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Related Questions

Correct Answer is B

Explanation

Choice A rationale
Eating a bedtime snack that contains a milk product is not typically recommended for patients with dumping syndrome. Dairy products can be high in fat and sugar, which can exacerbate symptoms.
Choice B rationale
Increasing protein in the diet is often recommended for patients with dumping syndrome. Protein helps to slow the movement of food through the stomach, which can help to prevent the rapid emptying that leads to symptoms.
Choice C rationale
Drinking at least one glass of water with each meal is not typically recommended for patients with dumping syndrome. Drinking fluids during meals can increase the speed at which food leaves the stomach, potentially worsening symptoms.
Choice D rationale
Eating three moderate-sized meals a day is not typically recommended for patients with dumping syndrome. Instead, patients are often advised to eat several small meals throughout the day to prevent overloading the stomach.

Correct Answer is ["22.5"]

Explanation

The order is for potassium chloride 30 mEq. The available medication is potassium chloride 20 mEq/15mL. To calculate the amount to administer: Step 1 is: Set up a proportion to solve for the unknown quantity (X), which is the volume in mL to administer. The proportion is (20 mEq
/ 15 mL) = (30 mEq / X mL).
Step 2 is: Cross-multiply to solve for X. X = (30 mEq * 15 mL) ÷ 20 mEq.
Step 3 is: Calculate X. X = 22.5 mL. So, the nurse should administer 22.5 mL of potassium chloride.

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