Wallach's Interpretation of Diagnostic Tests: Pathways to Arriving at a Clinical Diagnosis (1122 page)

BOOK: Wallach's Interpretation of Diagnostic Tests: Pathways to Arriving at a Clinical Diagnosis
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PLASMA RENIN ACTIVITY (PRA)
   Definition
   Renin activity is measured indirectly by the ability of the patient’s plasma to generate angiotensin.
   
Normal range:
   
Cord blood:
4.0–32.0 ng/mL/hour
   
Newborn
(1–7 days): 2.0–35.0 ng/mL/hour
   
Child, normal-sodium diet, supine:
   1–12 months: 2.4–37.0 ng/mL/hour
   1–3 years: 1.7–11.2 ng/mL/hour
   3–5 years: 1.0–6.5 ng/mL/hour
   5–10 years: 0.5–5.9 ng/mL/hour
   10–15 years: 05–3.3 ng/mL/hour
   
Adult, normal-sodium diet
   Supine: 0.2–1.6 ng/mL/hour

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Wallach's Interpretation Of Diagnostic Tests: Pathways To Arriving At A Clinical Diagnosis
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