OB Flashcards
Cut off for prolonged latent phase in nulliparous women
> 20h
Cut off for prolonged latent phase in multiparous women
> 14h
Rate of cervical dilatation in nulliparous women
1.2cm/h
Rate of cervical dilatation in multiparous women
1.5cm/h
Cardinal movements
E-D-F-I-R-E-E-R-E
Engagement > Descent > Flexion > Internal rotation > Extension > External rotation or restitution > Expulsion
Ideal measurement of the following diameters:
1) True/ anatomic conjugate
2) Obstetric conjugate
3) Diagonal conjugate
1) 11cm
2) >10cm
3) >11.5cm
At which part of the cardinal movements does the descending head meet resistance?
Flexion
Which among the cardinal movements is essential for completion of labor?
Internal rotation
At which stage of labor do the cardinal movements occur?
2nd stage of labor
Peak of Beta hcG
3mos
Hormone important in breast ductal changes
Estrogen
Hormone important in lactiferous ducts changes
Progesterone
Signs of placental separation
Sudden gush of blood
Globular and firmer fundus
Lengthening of the umbilical cord
Rise of the uterus into the abdomen
Maneuver used in the dystocia drill where suprapubic pressure is applied over posterior aspect of anterior shoulder
Mazzanti maneuver
Manuever used in the dystocia drill where the anterior shoulder is pushed towards the chest
Rubin maneuver
Cephalic replacement
Zavanelli maneuver
Most common cause of preterm birth
Placenta previa or abruptio
Tocolytic agent of choice for preterm labor
Nifedipine
Dosing for betamethasone in premature labor? Dexamethasone?
Betamethasone: 12mg/IM q 24h for 2 doses
Dexamethasone: 6mg/IM q 12h for 4 doses
Drug used in treatment of chorioamnionitis with high incidence of NEC
Amoxicillin-clavulanic acid
Karyotype of complete H. mole
46, XX
Indication for methotrexate/ actinomycin D therapy in H. mole
o Maternal age > 35 o G4 and above o Uterine size larger than AOG > 6 weeks o Serum "-hCG titer > 100,000 mIU/ml o Theca lutein cysts > 6 cm oMedical complication arising from increased trophoblastic proliferation o Repeat molar pregnancy o Residing in a distant geographical location
Most common risk factor for ectopic pregnancy
Chlamydia infection
Most common site of ectopic pregnancy
Tubal