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Laboratory Information

Test Name

Renin activity

Synonyms

PRA

External Price (excl. GST)

69.98

Specimen Collection

Adult Specimen

EDTA (purple top), tube must be filled.

Paediatric Specimen

EDTA (purple top) 3 mls blood

Sample Delivery to Lab

Transport at room temperature only, do not chill sample. Sample stable for 6 hours at room temperature. Do not place next to samples that are on ICE (eg. ACTH)

Instructions for Referral to Waikato Lab

Aliquot instructions

Separate sample at room temperature. Freeze aliquot rapidly. Must remain frozen during transport.

Aliquot Transport

Frozen

Test Information

Department

Biochemistry

Test Availability

Mon - Fri, 0800 - 1630 excl. Public Holidays

Laboratory Turnaround Time

21 days

Method

RIA

Unit of measurement

ng/ml/hr

Reference interval

0.4 - 5.0 ng/mL/hr

Reference interval Attachments

Renin and aldosterone onlinemanual (Renin-and-aldosterone-onlinemanual.docx, 21 KB)

Uncertainty of measurement

30%

Diagnostic Use Or Instructions

Ideally collect samples after patients have been out of bed for > 2 hours and been seated for 5 - 15 minutes

Consider primary hyperaldosteronism when Renin is < 0.4 ng/ml/hr AND Aldosterone is >400 pmol/L

Minimum Volume

1.0 mL EDTA plasma.

Electronic Information

Registration Code

HL7 mapping code

$RA

Laboratory Test Reference Guide