hCG levels reach peak the in maternal serum at
Answer
Correct answer - b. 40 - 90 days
Discussion
Human chorionic gonadotropin ( hCG ) is a glycoprotein hormone and it contain galactose and hexosammine . hCG produced by syncytiotrophoblast of placenta during pregnancy .hCG mead up of alpha and beta subunite , alpha subuinte identical to that of LH , FSH , TSH but beta subunite is unique to hCG.
Function of hCG is to maintain corpus luteum of pregnancy . Corpus luteum produced estrogen , progesterone, relaxine which are responsible for maintenance of pregnancy
hCG level can be measured in blood and urine . In blood it can be detected after 6 days of conception .In urine it can be detected after 14 days of conception . hCG level gradually increase and come to peak at 9- 12 week of pregnancy ( 36 -84 days of prgncy ) then level decrees .
| weeks since last menstrual period |
hCG level mIU / ml/ |
| 3 |
5-50 |
| 4 |
5-426 |
| 5 |
18-7 340 |
| 6 |
1 080-56 500 |
| 7-8 |
7 650-229 000 |
| 9-12 |
25 700-288 000 |
| 13-16 |
13 300-254 000 |
| 17-24 |
4 060- 165 400 |
| 25-40 |
3 640- 117 00 |
Labels: ENDOCRINE, Endocrine MCQs, Physiology MCQ