Patient's question:
What are the tests for ectopic pregnancy?Doctor's answer:
The serum P level in ectopic pregnancy is low, but it remains relatively stable during weeks 5 to 10 of pregnancy, with a single measurement having significant diagnostic value. Although there is an overlap in serum P levels between normal and abnormal pregnancies, making it difficult to determine an absolute critical value, a serum P level below 10 ng/mL (radioimmunoassay) often suggests an abnormal pregnancy, with an accuracy of around 90%.