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
Consuming large meals can exacerbate GERD symptoms. Smaller, more frequent meals are recommended to reduce the volume of food in the stomach at any one time, thereby reducing the pressure on the lower esophageal sphincter.
Choice B rationale
Identifying and avoiding foods that cause discomfort is a key strategy in managing GERD. Foods that commonly trigger GERD symptoms include fatty foods, spicy foods, acidic foods, and caffeine.
Choice C rationale
Using pillows to elevate the head and upper body during sleep can help prevent nighttime GERD symptoms. Gravity helps keep stomach acid in the stomach, reducing the chance of it flowing back into the esophagus.
Choice D rationale
Lying down after a meal can exacerbate GERD symptoms. It is recommended to wait at least three hours after eating before lying down.
Correct Answer is A
Explanation
Choice A rationale
Dumping syndrome is a common complication after gastric surgery. It is a condition where ingested foods bypass the stomach too rapidly and enter the small intestine largely undigested. It’s called "dumping" because the contents of the stomach are "dumped" into the small intestine too quickly.
Choice B rationale
Hypothyroidism is not typically a complication of gastric surgery. Hypothyroidism is a condition in which the thyroid gland does not produce enough thyroid hormones. It is not directly related to gastric surgery.
Choice C rationale
While pulmonary embolism is a potential complication of any surgery due to the risk of blood clots, it is not specific to gastric surgery.
Choice D rationale
Urinary tract infections are not typically a complication of gastric surgery. They occur when bacteria enter the urinary tract, and are not directly related to gastric surgery.
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