what is a pregnancy test via urine called
Pregnancy tests look for the human chorionic gonadotropin (hCG) hormone which is also called the pregnancy hormone. Human chorionic gonadotropin (hCG) is a special hormone in the urine or blood that is only there when a woman is pregnant.
Blood or protein in the urine may cause false-positive pregnancy results. Urine hCG tests may give a false-negative result if the urine is too diluted or if testing is done too soon in the pregnancy. Certain drugs such as diuretics and promethazine (an antihistamine) may cause false-negative urine results.