Clinical Medical Assistant Exam Practice Question

Correct Answer: B

Rationale: A significantly high pH level in a urinalysis test can often be attributed to prolonged vomiting. This condition leads to a loss of stomach acids, resulting in a more alkaline urine.

Option A, excessive consumption of acidic food, would typically lower urine pH, not raise it. Option C, dehydration, can concentrate urine but does not directly cause a high pH; it may lead to more acidic urine instead. Option D, a urinary tract infection, often results in acidic urine due to the presence of bacteria that produce acid. Thus, prolonged vomiting is the most accurate cause of elevated urine pH in this context.