Aldosterone-renin ratio — lab reference
In the reference guideScreening cutoff depends on units, method, medications, potassium, and collection protocol.
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What’s searchable?Screening cutoff depends on units, method, medications, potassium, and collection protocol.
Sodium intake, posture, potassium, time, medications, and renin method are essential.
Calculated and context-dependent. Not a stand-alone diagnostic marker.
Calculated; interpret component values.
Approximate risk strata are sex-specific and assay-dependent.
A1 <30; A2 30-300; A3 >300. Persistence ≥3 months matters for CKD classification.
Ask your clinician to use laboratory and indication-specific thresholds; consider timed collection when needed.
Direct renin and plasma renin activity are not interchangeable.
This ratio is useful only when both measurements were made using a reliable paired method.
Dipstick is albumin-biased. Ask your clinician to confirm persistent findings with quantitative ratio.
Normal range only. Warfarin therapeutic targets are indication-specific.
Hydration and concentrating ability affect result.
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