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: Identify the dose of aspirin the nurse needs to administer, which is 650 mg. Step 2: Identify the available dose, which is 325 mg per tablet.
Step 3: Calculate the number of tablets needed by dividing the required dose by the dose available per tablet. So, 650 mg ÷ 325 mg/tablet.
Step 4: The calculation gives us 2. Therefore, the nurse should administer 2 tablets.
Correct Answer is A
Explanation
Choice A rationale
Coffee ground vomitus is a symptom that indicates upper gastrointestinal bleeding. One of the conditions that can cause this symptom is a hiatal hernia. A hiatal hernia occurs when part of your stomach pushes upward through your diaphragm, and it can cause acid reflux, which can lead to esophagitis and bleeding. When the blood mixes with stomach acid, it can look like coffee grounds when vomited.
Choice B rationale
Gallbladder disease typically presents with symptoms such as abdominal pain (especially after eating), nausea, vomiting, bloating, and fever. While it can cause discomfort and complications like gallstones and inflammation, it does not typically cause coffee ground vomitus.
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