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
HCG level seen in : 
Select and explain. 
A. Down syndrome, B. DM, C. Multiple pregnancy, D. Ectopic pregnancy
D: Ectopic pregnancy
Answer: D: Ectopic pregnancy 
Explanation: Ans. is d i.e. Ectopic pregnancy Caught you, I know some of you must have instantly answered "Down's Syndrome". But my dear friends read the question very carefully. It says decreased hCG levels and not decreased AFP levels.