This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Diagnosis in obstetrics, Subject name: Gynaecology & Obstetrics
Monitoring of beta-hCG is useful in management of: 
Select and explain. 
A. H. mole, B. Choriocarcinoma, C. Ectopic pregnancy after laproscopic resection, D. Endodermal sinus tumor
A: H. mole
Answer: A: H. mole 
Explanation: Follow up with beta -hcg is the impoant step in the management of gestational trophoblastic disease.Follow up is by weekly serum beta hcg for the first 6 weeks,and then fornightly until 6 months.Thereafter,urine pregnancy test can be employed fornightly until one year,monthly for the next year,2 monthly for 6 months,3 monthly for 4 months,4 monthly for 3 months and then 6 monthly for life. Refer page no 175 of Text book of obstetrics,sheila balakrishnan 2 nd edition.