Which of the following is FALSE concerning normal urine?
Urine contains glucose
Urine may contain drugs
Urine contains water
Urine contains uric acid
The Correct Answer is A
A. Urine contains glucose: Glucose is not normally present in urine. Its presence typically indicates hyperglycemia, such as in uncontrolled diabetes mellitus.
B. Urine may contain drugs: Many drugs and their metabolites are excreted in the urine, which is why urine drug testing is possible.
C. Urine contains water: Water is the main component of urine, making up about 95% of its volume.
D. Urine contains uric acid: Uric acid is a normal waste product of purine metabolism, excreted by the kidneys.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Stomach: The stomach primarily functions in mechanical digestion and protein breakdown, but most absorption does not occur here.
B. Duodenum/proximal jejunum: These regions of the small intestine are responsible for majority of digestion and nutrient absorption, including fats, carbohydrates, and proteins.
C. Ascending colon: This is part of the large intestine, mainly involved in water and electrolyte absorption, not digestion.
D. Transverse colon: Like the ascending colon, this structure primarily functions in water absorption and feces formation.
Correct Answer is A
Explanation
A. An increase in GFR increases urine formation: A higher GFR means more plasma is filtered, leading to more urine production.
B. It is not an indication of kidney function: GFR is a primary indicator of kidney function.
C. A decrease in GFR causes polyuria: A low GFR usually leads to oliguria (low urine output), not polyuria.
D. It is unaffected by blood pressure: GFR is directly influenced by blood pressure; low pressure decreases filtration.
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