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?
Ammonia
Hydrochloric Acid
Potassium
Carbon Dioxide
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["2"]
Explanation
Step 1 is: The doctor has ordered 650 mg of aspirin and each tablet contains 325 mg. So, to find out how many tablets to administer, we divide the ordered dose by the dose per tablet.
Step 2 is: 650 mg ÷ 325 mg/tablet = 2 tablets.
Correct Answer is A
Explanation
Choice A rationale
Elevating the head of the bed is a recommended strategy to minimize the effects of reflux during sleep. This position uses gravity to keep stomach acid from flowing back into the esophagus.
Choice B rationale
Eating a snack 1 hour before going to bed can actually worsen reflux symptoms. It’s generally recommended to avoid eating 2-3 hours before bedtime.
Choice C rationale
Alcohol can relax the lower esophageal sphincter, making it easier for stomach acid to reflux into the esophagus. Therefore, consuming alcohol before bed is not advisable.
Choice D rationale
Sleeping on the stomach with the head flat can exacerbate reflux symptoms. This position does not utilize gravity to keep stomach acid from flowing back into the esophagus.
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