Human chorionic gonadotropin (hCG)

Test investigation

Human chorionic gonadotropin (hCG)

Laboratory offering test

NNUH, QEH

Units

IU/L

Comments precautions

hCG is usually detectable 7-9 days after conception. Doubling time is 1.4-2.1 days in normal early pregnancy, but may be prolonged in ectopic pregnancy and threatened miscarriage.

Sample type

Serum or Heparin

Turnaround times (TAT) Urgent/Routine/GP or OPD

Within 4 hours/8 hours

Reference intervals

Non-pregnant < 5 IU/L

If ukas accredited

Y NNUH