Referred to Berkshire & Surrey Pathology Services, Frimley Park Hospital NHS Foundation Trust, Portsmouth Road, Frimley, Surrey GU16 7UJ
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Alternative names, keywords |
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Samples required |
Bring to lab for immediate attention (plasma must be separated within 4h). Renin and aldosterone can both be done on the same EDTA sample. State drug treatment, BP, recumbency if known. |
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Test indications |
Useful to investigate hypertension, especially resistant hypertension, in younger patients, and with hypokalaemia, although note that Conn’s may lack these features. |
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Reference range |
Supine 100 - 450 pmol/L Aldosterone/renin ratio:
<80 Conn's unlikely
80 - 200 Conn's not excluded >200 Conn's likely |
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Turnaround time |
Referral lab quotes turnaround time of 13 days, however additional time must be allowed for packing, dispatch and delivery of sample, and return and processing of results. |
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Enquiries |
Biochemistry (Referrals) |
EDTA blood (purple cap/ yellow cap ring, 4 mL tube). Smaller tubes are available for paediatric samples.