HCG may stand for

GoldBamboo

... Why get tested?
To confirm and monitor pregnancy or to diagnose trophoblastic disease or germ cell tumors

When to get tested?
As early as 10 days after a missed menstrual period (some methods can detect hCG even earlier, at one week after conception) or if a doctor thinks that your symptoms suggest ectopic pregnancy, a failing pregnancy, trophoblastic disease, or germ cell tumors

Sample required?
A urine sample collected first thing in the morning or a blood sample drawn from a vein in the arm
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Lab Tests Online - more...

HCG may stand for Human chorionic gonadotropin (usually abbreviated with a ...
Wikipedia - [full article]

Resources

  • hCG (Lab Tests Online)