The presence of ________ in blood or urine is a reliable indication of pregnancy.
A) estrogen and progesterone
B) luteinizing hormone
C) human placental lactogen
D) human chorionic gonadotropin
E) relaxin

Question

Quizplus · Accepted Answer

Human chorionic gonadotropin (hCG) is produced by the placenta after implantation of the fertilized egg and is present in the blood and urine of pregnant women. It is a reliable indication of pregnancy, as it is not present in non-pregnant individuals. Estrogen and progesterone, luteinizing hormone, human placental lactogen, and relaxin can also play a role in pregnancy, but they are not as reliable indicators as hCG.

The Presence of ________ in Blood or Urine Is a Reliable