Beta-HCG

Chart

Levels over Time

Week	Minimum	Maximum
3	0	5
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-birth	3,640	117,000
4-6 post	NA	<5

Repeat Levels

Repeat B-hCG Levels

Pregnancy Type	B-hCG Change
Normal	Increase >53% in 48hrs (until 10,000 mIU/ml) Depends on the initial value: <1500 --> 50% increase 1500-3000 --> 40% increase > 3000 --> 30% increase
Ectopic	Increases or decreases slowly ("plateau")^
Miscarriage	Decreases >20% in 48 hrs

^Initial level CANNOT be used to rule-out ectopic

See Also

• Vaginal Bleeding Pregnant (less than 20wks)
• Ectopic Pregnancy
• Maternal Vitals and Labs in Pregnancy