Pathology

Test & Collection Guide

Proinsulin

Ordering information:

Chemical Pathologist approval is required.

Proinsulin is the precursor peptide from which insulin is formed. Proinsulinomas are very rare tumours which secrete proinsulin, causing spontaneous hypoglycaemia. Results should be interpreted with a paired glucose and insulin result. Proinsulin will only be measured where there is biochemical evidence of hypoglycaemia at the time of collection.

Laboratory:

Referred Test

Test Code:

PROINS

Specimen types:

Serum

Container types:

Serum tube with gel

Collection Instructions:

Overnight fasting is required

Minimum Adult Volume:

2 mL

Paediatric Minimum Volume:

2 mL

Frequency:

Fortnightly

Laboratory Use Only

Storage Instructions:

Spin, separate and freeze sample.

Laboratory Notes:

Sample to be sent to

Chemical Pathologt Dept

Prince of Wales Hospital

Level 4, Campus Centre

Barker Street

Randwick NSW 2031

(02) 9382 3578