Alpha Subunit

Pathology category

Biochemistry - referred tests

Code

ASU

Referral code

Request form

Test information

Used for the detection and monitoring of functionless pituitary tumours.

Guidelines

Pre-analytical

Pregnancy: there is 0.1% cross reactivity with hCG

Reference range

Adult <1 IU/L Menoapuse and mis-cycle <3 IU/L

Tube type

Tube type info

SST

Special requirements

Serum

Minimum volume

500 uL

Assay frequency

TAT Inpatient (urgent)

TAT Inpatient

4 weeks

TAT GP/Outpatient

4 weeks

Referral lab

Department of Clinical Biochemistry, Queen Elizabeth Hospital, Birmingham