Free β-hCG levels of < 0.5, > 0.5 and < 2.0, and ≥ 2.0 MoM were categorised as low, normal and high, respectively.

What are normal free beta hCG and PAPP-A levels?

Median serum PAPP-A measurements (0.31 MOM, 95 per cent confidence interval (CI) 0.22-0.65 vs. normal 1.06, 95 per cent CI 0.89-1.20) were lower and free beta-hCG subunit measurements (1.13 MOM, 95 per cent CI 0.93-2.63 vs. normal 0.91, 95 per cent CI 0.79-1.03) were higher at statistically significant levels.

### What should free beta hCG be at 13 weeks?

In trisomy 21 pregnancies the median MoM free β-hCG increases from 1.8 at 11 weeks to 2.09 at 13 weeks, and the respective values for PAPP-A are 0.38 and 0.65 MoMs.

What is normal hCG at 12weeks?

Standard hCG levels

Pregnancy week Standard hCG range
7–8 weeks 7,650–229,000 mIU/mL
9–12 weeks 25,700–288,000 mIU/mL
13–16 weeks 13,300–254,000 mIU/mL
17–24 weeks 4,060–165,400 mIU/mL

## How to calculate beta hCG level for twins?

To calculate beta hcg level chart for twins (multiples chart) and molar pregnancy by DPO in mIU/L of hCG beta-subunit level: In women who are having a multiple pregnancy, twins pregnancy or more it is common for their hCG levels to be 30-50% higher than those with a singleton pregnancy.

What should newborn beta hCG levels be at birth?

Reference Values. Newborn serum beta-hCG concentrations are approximately 1/400th of the corresponding maternal serum concentrations, resulting in neonate beta-hCG levels of 10-50 IU/L at birth. Clearance half-life is approximately 2-3 days. Therefore, by 3 months of age, levels comparable to adults should be reached.

### What is the range of PAPP-A and free beta hCG?

The 5th, 50 and 95thcentile of PAPP-A and free beta-hCG during 11-14 weeks of gestation were 1.54-69, 14-28, 51-57 and 24.8-17, 78-47, 181.6-126.5 mIU/ mL, respectively. The distribution and the 5% and 95%, lower and upper limits of NT, PAPP-A and free beta- hCG was presented.

How to calculate your hCG levels in a calculator?

To calculate your hCG levels, you will have to enter the data from two beta hCG samples. The hcg levels calculator will check the doubling time between the two levels. You have to first enter the value of your first hCG test levels. Then enter value of the second hCG test levels.