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Renin
minimum sample volume required ~ 4ml
Test Code: REN
Tube type: EDTA
Other acceptable tube types
Lithium heparin (pale green) also accepted but EDTA preferred
Special instructions
Samples must be transported to the lab at room temperature. DO NOT TRANSPORT CHILLED ON ICE.
MUST be received in lab within 4 hours of collection.
Sample time MUST be stated on form.
Serum potassium must be >3mmol/L.
Sent away
to Charing Cross Hospital, London
Reference range
0.5 - 3.5
Units
nmol/L/hr
Linked to
Aldosterone
Turnaround Time
28
days
Department: Biochemistry
Clinical Application
Measurement of renin-aldosterone ratio in plasma is useful in investigation of suspected Conn's syndrome. See also Aldosterone
Interpretation of Aldosteron/Renin ratio (ARR):
Conn's unlikely: <680
Possible Conn's: >850
Conn's very likely: >1700
