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Kidney - blood and urine flow

Overview Risks Results

Renin

Alternative Names: Plasma renin activity; Random plasma renin; PRA Normal Values: Normal values range from 1.9 to 3.7 ng/ml/hour. Normal value ranges may vary slightly among different laboratories. Text Continues Below Note: ng/ml/hour = nanograms per milliliter per hour What abnormal results mean: Higher-than-normal levels may indicate: Addison's disease Cirrhosis Essential hypertension Hemorrhage (bleeding) Hypokalemia Malignant hypertension Renin-producing renal tumors Renovascular hypertension Lower-than-normal levels may indicate: Salt-retaining steroid therapy ADH therapy Salt-sensitive essential hypertension Additional conditions under which the test may be performed include primary hyperaldosteronism.

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