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 B
Explanation
Choice A rationale
Folate, also known as vitamin B9, is essential for many functions in the body, including cell growth and division, amino acid metabolism, and the formation of white and red blood cells. However, it is not the treatment for pernicious anemia.
Choice B rationale
Pernicious anemia is a condition where the body cannot absorb enough vitamin B12 in the small intestine, causing a drop in red blood cells. Treatment for pernicious anemia involves vitamin B12 injections or oral supplementation to restore levels to an optimal range, followed by continued injections or oral medications to maintain these levels.
Choice C rationale
Vitamin C is essential for the growth, development, and repair of all body tissues. It’s involved in many body functions, including the formation of collagen, absorption of iron, the immune system, wound healing, and the maintenance of cartilage, bones, and teeth. However, it is not the treatment for pernicious anemia.
Choice D rationale
Iron is a mineral that our bodies need for many functions. For example, iron is part of hemoglobin, a protein which carries oxygen from our lungs throughout our bodies. However, it is not the treatment for pernicious anemia.
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