ערכי בטא בהריון תאומים

ערכי בטא בהריון תאומים

Quanitative serum hCG tests detect multiple pregnancy approximately 9 weeks earlier than ultrasound. One small study (Jovanovic, 1977) found hCG levels in 15 singleton and 9 twin pregnancies were as follows
Copyright Kimberly Bobrow Jennery, 1997-2006
http://www.bobrow.net/kimberly/birth/hcglevels.html

DAYS FROM LMP

last menstrual period

 hCG in SINGLTON AVERAGE GESTATION RANGE hCG in AVERAGE TWIN GESTATION RANGE
28 64.7 9.4 to 120 64.7 9.5 to 120
33 450 300 - 600 1,500 200 to 1,800
36 1,500 1,200 - 1,800 19,200 2,400 to 36,000
40 3,600 2,400 - 4,800 58,344 8,700 to 108,000
45 36,000 12,000 - 60,000 126,000 72,000 to 180,000
70 120,000 96,000 - 144,000 414,000 348,000 to 480,000"



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