Fetal Development & Weeks
What closes after fertilization to prevent polyspermy?
Zona pellucida and plasma membrane.
2 roles of progesterone?
A: Vessel growth, prevent contractions.
$100: BUBBLEHE stands for?
A: Breasts, Uterus, Bladder, Bowels, Lochia, Episiotomy, Homan’s sign,
Cause of polyhydramnios?
Cause of polyhydramnios?
A: Gestational diabetes or swallowing problems.
Oxytocin (Pitocin) use postpartum?
A: Stimulate contractions, control bleeding.
Germinal, Embryonic, and Fetal periods correspond to what weeks?
Germinal 0–2, Embryonic 3–8, Fetal 9–birth.
Estrogen’s main roles? (3)
A: Uterine growth, fetal organ development, milk duct stimulation.
Lochia order and time frame with description
A: Rubra (2-3) red
Serosa pink-brown (4- 10)
Alba -White/yellow (upto 6 weeks)
Effect of “overdoing it” on lochia?
A: Increased bleeding.
Which med can cause HTN?
A: Methergine.
What’s the major milestone in Week 4?
Heart starts beating.
Oxytocin functions?
A: Stimulates contractions and milk letdown.
What does REEDA evaluate?
A: Perineal healing.
Postpartum infection risk factors? (5)
A: C-section, multiple exams, prolonged ROM, catheter, diabetes.
Hemabate (Carboprost) major side effect?
A: N/V/D.
When does ossification of bones begin?
A: 3rd month (12 weeks).
What happens when estrogen/progesterone drop after delivery?
A: Menstrual cycle resumes, mood shifts.
Positive Homan’s sign means? how to assess?
A: DVT. flex knee and put dorsiflex plantar, if calf has pain = positive homans sign
Postpartum hemorrhage risk factors? ( 4)
A: Grand multiparity, retained placenta, meds, operative birth.
rubella vaccine: pregnancy teaching?
A: Avoid pregnancy 3 months.
What happens by Week 36?
A: Baby rotates head down, subcutaneous fat develops.
Which hormone is linked to large babies (>9 lbs)?
A: hPL.
Which hormone is linked to large babies (>9 lbs)?
A: hPL.
What does “boggy uterus” indicate?
A: Uterine atony → hemorrhage risk.
Danger of oligohydramnios?
A: Fetal distress, poor growth, need for early delivery.
Why not give rubella and Rh immune globulin together?
A: RhIG interferes with vaccine response.