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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Related Questions
Correct Answer is D
Explanation
A. “You don't need a colonoscopy unless you have bleeding when you move your bowels.”: This delays screening and ignores current guidelines.
B. “You don't need a colonoscopy unless you have a family history of colon cancer.”: Screening is recommended for average-risk individuals regardless of family history.
C. “You need to get a colonoscopy when you are 60 years old.”: This is later than current guidelines recommend.
D. “You need to get a colonoscopy when you are 45 years old.”: As per current USPSTF and American Cancer Society guidelines, colon cancer screening starts at age 45 for average-risk adults.
Correct Answer is ["A","B","E"]
Explanation
A. Reabsorption: The nephron reabsorbs water, glucose, and electrolytes from the filtrate back into the blood.
B. Filtration: The glomerulus filters blood, initiating urine formation by removing waste, water, and solutes.
C. Storage: Urine storage occurs in the bladder, not the nephron.
D. Increase RBC production: While the kidneys release erythropoietin, which stimulates RBC production, this is not a nephron-specific function.
E. Secretion: The nephron actively secretes waste products like hydrogen ions and drugs into the tubule for excretion.
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