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 B
Explanation
Choice A rationale
While administering pain medication can provide temporary relief for a client with severe abdominal pain, it does not address the underlying issue of a perforated peptic ulcer. Pain medication should be administered as part of a comprehensive treatment plan, but it should not be the first step in managing a perforated peptic ulcer.
Choice B rationale
Initiating IV fluid resuscitation is a crucial first step in the management of a client presenting with severe abdominal pain and a history of peptic ulcer disease. A perforated peptic ulcer is a medical emergency that can lead to infection and shock, and IV fluid resuscitation can help stabilize the client’s condition while further diagnostic and therapeutic measures are taken.
Correct Answer is B
Explanation
Choice A rationale
Increasing fluid intake after a barium swallow test is recommended. This helps to flush the barium out of the system and can help to prevent constipation.
Choice B rationale
Stools will not be normal in color after a barium swallow test. It is normal for bowel movements to appear lighter in color, or even white, after a barium study.
Choice C rationale
The barium swallow test does examine the esophagus, stomach, duodenum, and jejunum. The barium coats the lining of these organs, making them easier to see on an X-ray.
Choice D rationale
Patients may need to take laxatives to prevent constipation from the barium. Barium can slow down the digestive system, so taking a laxative can help to keep things moving.
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