Urine protein/creatinine ratio — lab reference
In the reference guideAsk your clinician to use laboratory and indication-specific thresholds; consider timed collection when needed.
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What’s searchable?Ask your clinician to use laboratory and indication-specific thresholds; consider timed collection when needed.
Calculated and context-dependent. Not a stand-alone diagnostic marker.
A1 <30; A2 30-300; A3 >300. Persistence ≥3 months matters for CKD classification.
Collection completeness must be assessed.
Dipstick is albumin-biased. Ask your clinician to confirm persistent findings with quantitative ratio.
Muscle mass, age, diet, medications, and assay matter. Ask your clinician to review with eGFR, not alone.
Ask your clinician to review albumin, globulin, and electrophoresis when indicated.
Calculated; interpret component values.
Approximate risk strata are sex-specific and assay-dependent.
Spot urine is useful mainly for populations; individual status requires careful collection and interpretation.
The test method matters. Acute infection, injury, and chronic inflammation may elevate.
Color and clarity are nonspecific; review medications, hydration, and sediment.
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