Early Pregnancy Flashcards
Fetal heart rate
110-160
Margin of error in CRL measurements
8%/5 days
Chadwick’s sign
Congestion of pelvic vasculature leading to bluish discoloration of vagina/cervix
Hegar’s sign
Widening and softening of body of uterus
Leucorrhoea
Increase in vaginal discharge
When can CRL be used
6-13 weeks gestation
What shares an alpha subunit with hcg
Lh, fsh, thyrotropin
Naegele’s rule?
EDD = LMP +7 days - 3 months + 1 year
When is a pregnant uterus palpable
8 weeks
When is a pregnant uterus in the abdomen
12 weeks
Uterine height at 20 weeks gestation
Umbilicus
What antibiotic for syphilis in pregnancy?
Penicillin as it crosses to the fetus.
GC in pregnancy complications
Preterm labour, preterm premature rupture of membranes, intrapartum and post partum infection, occular injury of fetus
When to do CS in HiV
High viral load
Normal pregnancy weight gain
11.5 - 16kh
Why avoid hot tubs in trim 1
Association between maternal heat exposure and neural tube defects
Name the 5 live vaccines
Measles mumps polio rubella varicella
Most common ectopic USS finding
Complex/inhomogeneous mass adnexal mass (50-60%)
hCG level to see abdominal ectopic pregnancy
> 6000
What rh-ve ectopic patients need anti-D
All surgical
Only medical/expectant with severe pain
Repeat ectopic risk
7&10%
Most common trisomy causing miscarriage
Trisomy 16
Medical risk factors for miscarriage
Poorly controlled DM
Hyperthyroidism
Hyper prolactin
Length of time to get anti D after sensitising event?
72 hours
Minimum dose anti D when pregnancy between 12-20 weeks?
250 units
Minimum dose anti D after 20 weeks
500 units+ test for FMH
Anti D prophylaxis in antenatal care
Either 1500IU at 28 weeks, or 500IU at 28 + 34 weeks
