Health encyclopaedia - Alphabetical Topic List

| A | | B | | C | | D | | E | | F | | G | | H | | I | | J | | K | | L | | M |
| N | | O | | P | | Q | | R | | S | | T | | U | | V | | W | | X | | Y |

Diagnosis of Pregnancy

The diagnosis of pregnancy is mainly determined by testing for the pregnancy hormone human chorionic gonadotropin (HCG).  HCG can be detected in the woman’s blood and urine even before the first missed period.  It is this hormone that is measured by home pregnancy tests.  A high HCG level may indicate a multiple pregnancy (e.g. the presence of twins or triplets), although the most reliable test is an abdominal or transvaginal scan.

Abdominal or transvaginal scans may be used to confirm pregnancy, how many embryos are present, and whether the embryo is located in the uterus (and not in the fallopian tube in the case of ectopic pregnancy).

Folic acid is highly recommended during the first twelve weeks of pregnancy (and before conception where possible).  Iron supplements may be recommended by the midwife or GP if pregnancy-related anaemia has been diagnosed.