Yintoni i-beta hCG?
Njengoko kuyaziwa, i-chorionic gonadotropin iqukethe i-beta kunye nama-subunithi e-alpha. Ukugqwesa okugqithisileyo yi-beta-hCG, inqanaba lithathwa ngexesha lokukhulelwa.
Ukumisela kokuxinwa kwe-hormone kukuvumela ukuba uqikelele ukukhulelwa kweentsuku ezingama-2-3. Nangona kunjalo, ukuxilongwa ngokuchanekileyo kunyanzeliswa ukuba kuphinde kuqhutywe uhlalutyo kwaye uphume nge-ultrasound.
Iyintoni i-subunit yamahhala yeHCG?
Ngethuba lokuqala, okanye njengoko bethetha, ukuxilongwa kokubeleka kokubeleka kwe-fetus, kunokuqwalasela izinga legazi kwi-subunit ye-beta yamahhala.
Olu hlalutyo lwenziwa kwithuba leeveki ezi-10-14. Eli lifanelekileyo liveki ezi-11-13. Kule meko, njengommiselo, okubizwa ngokuba kubizwa ngokuphindwe kabini, kuyenziwa. Ukongeza kwinqanaba le-beta-hCG yamahhala, umxholo egazini ehambelana nokukhulelwa kweprotheni ye-plasma A ichanekile.
Kwi-trimester yesibini yokukhulelwa okuqhelekileyo, uhlalutyo lwenziwe ukususela kwiiveki ezi-16 ukuya kwezi-18. Into ehlukile kukuba ngeli xesha, oko kuthiwa uvavanyo oluphindwe kathathu lwenziwe. Kule meko, i-beta-hCG yamahhala, i- AFP (i-alfa-fetoprotein) kunye ne-estradiol yamahhala inqunywe.
Ziphumelele njani iziphumo?
Ukuvavanya nokuchonga ukuphulwa kwe-intrauterine, ukuqukwa kwegazi kwi-subunit ye-hCG yamahhala ngexesha lokukhulelwa. Ngaloo xesha iqondo le hormone alisoloko lihlala kwaye lixhomekeke ngqo kwikota.
Kwi-trimester yokuqala yokukhulelwa, ukuxinwa kwe-hCG kwanda malunga no-2. Ifikelela kwinqanaba layo kwiiveki ezi-7-8 zokuthwala umntwana (kufika kumawaka ama-200 mU / ml).
Ngoko, ngeveki ye-11 ukuya kwe-12, isigaba se-hCG sinokuqhele ukuba sibe ngama-20-90 amawaka mU / ml. Emva koko, umxholo walo kumfazi wesetyhini okhulelweyo uqala ukunciphisa ngokuthe ngcembe, echazwe yinyaniso yokuba ngelo xesha zonke iinkqubo zomzimba ezibalulekileyo zenziwe, kuphela ukukhula kwabo okuqhubekayo.
Ukuba sithetha ngendlela izinga le hCG liguquka ngayo kwiiveki zokukhulelwa, ngokuqhelekileyo kwenzeka kanje:
- 1-2 iiveki - 25-300;
- 2-3 ngeveki - 1500-5000;
- 3-4 iiiveki - 10000-30000;
- 4-5 - 20000 - 100000;
- 5-6 - 50000 - 200000;
- 6-7 iiveki - 50000-200000;
- 7-8 - 20000 - 200000.
Emva koko, ukuxinwa kwegonadotropin egazini kuncipha kwaye ekupheleni kokukhulelwa kungu-10,000-50000 mU / ml.