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Pathology Departments Requesting & Reporting Blood Test Information Phlebotomy Guide Contact us
Blood Sciences

Blood Test Information

minimum sample volume required ~ 4ml

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Test Code: INS

Tube type: EDTA

Other acceptable tube types
Lithium heparin (pale green), SST (yellow)

Special instructions
Send (fluoride) sample for Glucose.

Interpretation of insulin results
During confirmed hypoglycaemia (glucose <2.7 mmol/L)
<7 pmol/L: Adequate suppression
7-19 pmol/L: Intermediate insulin
20+ pmol/L: Inappropriately raised insulin
Reference range for insulin during fasted, but not hypoglycaemic state:
20-160 pmol/L

Sent away to Bristol Royal Infirmary


Linked to

Turnaround Time
5 days

Department: Biochemistry

Clinical Application
For investigation of hypoglycaemia.


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