A patient with protein in the urine most likely has a problem at which point of the nephron?
AIts first part
BIts final tubule
CIts ureter outlet
DIts bladder neck
Answer & Solution
Correct answer: A. Its first part
1. Locate the damaged structure within the nephron.
2. Excessive protein in the urine usually means the glomerulus is damaged.
3. The damaged glomerulus allows protein to leak into the filtrate.
4. The glomerulus is the first part of the nephron.
5. So the problem lies at the nephron's first part.
_Source: OpenStax Anatomy and Physiology 2e (CC BY 4.0), Ch 25 'The Urinary System', sections 25.1-25.10_
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