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 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.
Correct Answer is C
Explanation
Choice A rationale
Monitoring peripheral pulses every 8 hours is not a specific intervention for a client who has acute pancreatitis. While it is important to monitor peripheral pulses as part of overall patient assessment, it does not directly address the needs of a patient with acute pancreatitis.
Choice B rationale
Ambulating the client three times daily is not a specific intervention for a client who has acute pancreatitis. While physical activity is generally beneficial for overall health, it does not directly address the needs of a patient with acute pancreatitis, especially during an acute attack.
Choice C rationale
Maintaining NPO (nothing by mouth) status is a common intervention for a client who has acute pancreatitis. This allows the pancreas to rest and recover, reducing inflammation and pain.
Choice D rationale
Measuring urine output every 4 hours is not a specific intervention for a client who has acute pancreatitis. While it is important to monitor urine output as part of overall patient assessment, it does not directly address the needs of a patient with acute pancreatitis.
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