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
Following changes are true about pregnancy, EXCEPT: 
Select and explain. 
A. Blood volume maximum at 36 weeks, B. Cardiac output maximum at 30 weeks, C. Ureter dilates maximum in middle pregnancy, D. Serum cholesterol is maximum at 32 weeks
A: Blood volume maximum at 36 weeks
Answer: A: Blood volume maximum at 36 weeks 
Explanation: The blood volume stas to increase from about 6th week,expands rapidly thereafter to maximum 40-50% above the nonpregnant level at 30-32 weeks. The cardiac output stas to increase from 5th week of pregnancy,reaches its peak 40-50% at about 30-34 weeks. Serum LDL and Cholesterol will reach a maximum of 260 mg/100 ml at near term of pregnancy. Dilation of ureter above the pelvic brim with stasis is marked between 20-24 weeks of pregnancy. Ref: Textbook of Obstetrics D.C.Dutta 6th Ed Page 38.