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

Answer and Explanation

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.

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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.

A. Review abdominal x-ray results B. Review chest x-ray results C. Flush the feeding tube D. Auscultate bowel sounds

Correct Answer is A

Explanation

Choice A rationale
Before starting an enteral feeding using a newly inserted nasogastric feeding tube, it is crucial to review abdominal x-ray results to confirm the correct placement of the tube.
Choice B rationale

While reviewing chest x-ray results can provide useful information about the patient’s overall health, it is not specifically required before starting an enteral feeding.
Choice C rationale
Flushing the feeding tube is an important step in maintaining tube patency, but it does not need to be done specifically before starting an enteral feeding.
Choice D rationale
Auscultating bowel sounds can provide information about gastrointestinal function, but it is not specifically required before starting an enteral feeding.

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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?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A patient presents with episodes of vomiting and notices the presence of coffee ground-like material in their vomit. This manifestation is most likely associated with which of the following conditions?

Correct Answer is A

Explanation

What action should the nurse take before starting an enteral feeding using a newly inserted nasogastric feeding tube?

Correct Answer is A

Explanation

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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?