This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.V.S., Subject name: Pediatrics
Kleihaeur Bethke test is done for: 
Select and explain. 
A. Cephalopelvic disproportion, B. Fetomaternal hemorrhage, C. Determining karyotype of normal fetus, D. Diagnosing fetal infections
B: Fetomaternal hemorrhage
Answer: B: Fetomaternal hemorrhage 
Explanation: b. Fetomaternal hemorrhage(Ref: Nelson's 20/e p 2335, Ghai 8/e p 340)A common approach to evaluating Fetomaternal Hemorrhage (FMH) is the rosette test to screen for the presence of fetal cells followed by the Kleihauer-Betke acid elution method to quantify the magnitude of feto-maternal bleed.