tweetie,
my 1st appt is on 19th. wah, so long wait for me leh. but boh bian leh, my doc dun wan to see me now...
How to measure hCG?
hCG or Human Chorionic Gonadotropin is the pregnancy hormone produced by the placenta as soon as implantation happens about one week after fertilization and ovulation. As soon as the embryo implants and the placenta attaches to the uterine lining, hCG enters the circulation as eventually is excreted into the urine.
One single hCG value does not tell you much about the viability of the pregnancy and there is a wide range of normal hCG levels in pregnancy. A normal hCG rise over several days prior to 6 weeks of the pregnancy usually indicates a viable pregnancy. In general, the best indication of a healthy pregnancy other than a normal rise of hCG is a good fetal heartbeat after 6-7 weeks.
There is a wide range of normal hCG values and the values are different in blood serum or urine.
Urine hCG levels are usually lower than serum (blood) hCG levels.
Here are average serum (blood) hCG values:
Weeks from LMP Normal amount of serum hCG
3 weeks 5-50 mIU/cc
4 weeks 4-426 mIU/cc
5 weeks 19-7,340 mIU/cc
6 weeks 1,080-56,500 mIU/cc
7 - 8 weeks 7,650-229,000 mIU/cc
9 - 12 weeks 25,700-288,000 mIU/cc
13 - 16 weeks 13,300-254,000 mIU/cc
17 - 24 weeks 4,060-165,400 mIU/cc
25 - 40 weeks 3,640-117,000 mIU/cc