A patient with poorly controlled diabetes has glucose in the urine. Which explanation is most accurate?
Correct answer: B. The filtered glucose exceeds tubular transport capacity
- A. The bladder secretes excess glucose
- B. The filtered glucose exceeds tubular transport capacity
- C. The ureters produce glucose during peristalsis
- D. The glomeruli normally prevent glucose filtration
Explanation
Glucose is normally filtered and then reabsorbed, mainly in the proximal tubule. When the filtered load exceeds the transport maximum, glucose remains in the tubular fluid and appears in urine.
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About Urinary System
The urinary system includes the kidneys, ureters, urinary bladder and urethra, with emphasis on nephron structure and urine formation. It explains glomerular filtration, tubular reabsorption, tubular secretion, water and electrolyte regulation, acid base balance, and the roles of ADH and aldosterone in maintaining homeostasis.
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