Which of the following measures The amount of fetal blood entering maternal circulation:: (A) Kleihauer - Betke test, (B) Singers test, (C) APT test, (D) Benedict test
Answer is A. To know the exact amount of blood in maternal circulation,KLEIHAUER - BETKE test (acid elusion test)is done which is a quantitative test To distinguish between maternal and fetal blood in cases of vasa pre APT TEST is done which is a qualitative test. Benedict test is used for checking reducing sugars in the urine