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Maternal smoking, BMI, parity, ethnicity, fetal gender, placental weight and hyperemesis gravidarum symptoms were associated with total hCG. We provide gestational RRs for total hCG and show that total hCG values and RR cut-offs during pregnancy vary depending on pregnancy dating methodology.
- Evidence-based pregnancy testing in clinical trials: Recommendations ...
Different pregnancy tests offer varying sensitivity and...
- Evidence-based pregnancy testing in clinical trials: Recommendations ...
12 Μαΐ 2015 · We provide gestational RRs for total hCG and show that total hCG values and RR cut-offs during pregnancy vary depending on pregnancy dating methodology.
The analysis of serum hCG has been used to confirm a pregnancy, to help diagnose an ectopic pregnancy, to help diagnose and monitor a pregnancy that may be failing, and/or to monitor a woman after a miscarriage. The following information helps to interpret serum hCG results in pregnancy evaluation. Serum hCG Reference Intervals and Expected Values
Compared to quantitative tests, qualitative tests were 80% sensitive, 100% specific, and had positive and negative predictive values of 100% and 98.5%, respectively. CG concentrations ranged from 6 to 31 IU/L in the 10 false-negative samples. 183 (17%) of survey respondents provided sufficient data for analysis.
Different pregnancy tests offer varying sensitivity and specificity in detecting an early pregnancy as well as markedly different levels of convenience for participants (e.g., at-home versus going to a lab; blood draw versus urine sample).
In RMCH, pregnancy tests are routinely performed prior to invasive abdominal surgery or high dose radiological procedures for all females who have started their periods or who are older than 13 years of age. . The test is also used to help diagnose and monitor germ cell tumours. .
Even though these common pregnancy-induced laboratory aberrations are well recognized, very few laboratories routinely provide normal values for pregnant women. Indeed, many laboratories do not even report normal values for ‘females’, much less for pregnant women.
