This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Gynaecology & Obstetrics
Not useful for diagnosis, in a female of 55 years presenting with postmenopausal bleeding: September 2009 
Select and explain. 
A. Transvaginal USG, B. Postcoital test, C. Pap smear, D. Endometrial biopsy
B: Postcoital test
Answer: B: Postcoital test 
Explanation: Ans. B: Postcoital Test Post-coital/Sim's/Huhner's test is for investigating infeility. Couple is advised to come after 2 hours of intercourse and following things are examined: Number of sperms in mucus aspirated from cervix Type of movement of sperms Quantity, viscosity and fern test of cervical mucus