Trust Homepage > Pathology Homepage

Test and Tubes Database
ID:110 Insulin
Search Links: General Info : Protocols : Patient Info

DescriptionInsulin assays are provided for the diagnosis of hypoglycaemia and will only be measured in states of hypoglycaemia. A fluoride oxalate sample for glucose must be sent at the same time. Serum samples are recommended for insulin measurement as this allows any follow-up tests (e.g. IGF-2, sulphonylureas) to be performed on the same sample. Lithium heparin is acceptable.
IndicationDifferential diagnosis of hypoglycaemia.
Additional Info
Concurrent TestsGlucose, C-peptide
Dietary Requirementsna

InterpretationA raised insulin and C-peptide with a blood glucose < 2.2 mmol/L is indicative of insulinoma (sulphonylurea abuse should be excluded).

Ref. Range (Male)
Ref. Range (Female)
Ref. Range (Paed)
Ref. Range Notes
Unitspmol/L


IP Acute TATRefer to Website
IP Routine TATAt least 1 week
GP Acute TAT- Contact Laboratory
GP Routine TAT- Contact Laboratory
Turnround CommentDr G Wark:gwen.wark@nhs.net
Originally edited by : JHB. Last edited on 22/11/2018 12:52:12. Published By SB on 22/11/2017 12:52:12.