Obstetrics
Pregnancy
Source
AMC handbook of MCQ 2010
- When pregnant, serum LH inc due identical beta subunit to CG, thus bHCG is measured as LH
- Fertile period = 5 days before to day of ovulation = highest chance of pregnancy
- Sperm survives for 6 days
- Ovum can only be fertilised 24 hours after ovulation
- Foetal head at level of ischial spine = Station 0 (inf = pos, sup = neg in cm)
- Low foetal scalp pH suggests hypoxia
- Most common sefx of oxytocin = foetal distress
- Safest definitive diagnostic tool for Down's syndrome = amniocentesis @ 16/40
- TORCH screen =
- Most common cause of intrauterine inf = CMV
R ubella
C MV
H SV/ HIV
Source
AMC handbook of MCQ 2010