Pregnancy, Childbirth, & Puerperium Flashcards
First stage of labor
Definition
Phases
Latent: Gradual cervical change from 0 cm to 6 cm dilation
Active: Rapid cervical change from 6 cm to 10 cm dilation
Disorders of the active phase of labor
- Diagnosis
- Clinical features
- Treatment

Neural tube detects
- Types
- Risk factors
- Prenatal screening
- Prevention

Infants of diabetic mothers – general risks
Respiratory distress syndrome
Preterm delivery
Fetal macrosomia
Infant of diabetic mother – complications
- 1st trimester
- 2nd and 3rd trimester

Placenta previa
- Risk factors
- Clinical features
- Diagnosis/management

Fetal fibronectin
Found on the choriodecidual interface
Presence in vaginal secretions at 24-34 gestation is predictive of preterm delivery
Kleihauer-Betke test
Determines the necessary dose of Rh(D) anti-D immunoglobulin after delivery of an Rh-positive fetus to an Rh-negative mother
Tocolytics
- Drug
- Mechanism
- Indication
- Side effects

Preterm labor (<37 weeks)
- Gestational age
- Management

Eclampsia
- Clinical features
- Management

Types of abortion (pregnancy loss at <20 weeks of pregnancy)
- Missed
- Threatened
- Inevitable
- Incomplete
- Complete

Antepartum fetal surveillance
Purpose
Frequency
Evaluates for fetal hypoxia in pregnancies with a high risk of fetal demise due to maternal or fetal factors.
Maternal factors: Hypertension, diabetes mellitus
Fetal factors: post-term pregnancy, growth-restriction
Weekly testing starting at 32 weeks
Normal non-stress test (NST)
>=2 heart rate accelerations that are >= 15 beats/min above baseline and >=15 seconds long within a 20 minute period

Antepartum fetal surveillance (Description, normal result, abnormal result)
- Nonstress test
- Biophysical profile
- Contracction stress test
- Doppler sonography of the umbilical artery
Placenta accreta
Risk factors
Occurs when uterine villi attach directly to the myometrium instead of the decidua.
Risk factors:
Prior cesarean delivery
History of D&C
Maternal age > 35

Placental abruption
Premature detachment of the placenta from the uterus
Vaginal bleeding
Abdominal pain
Tense and distended uterus
Fetal heart rate abnormalities

Placenta previa
Occurs when the placenta implants over the internal cervical os
Contractions and cervical dilation typically cause antepartum hemorrhage

Vasa previa
Fetal vessels traverse the amniotic membranes over the cervical os
Painless antepartum bleeding and fetal heart rate abnormalities just after the rupture of membranes
Breastfeeding contraindications
- Maternal
- Infant

Biophysical profile (Component, normal finding)

Nuchal cord
Associated with variable decelerations
Intrauterine fetal demise
- Definition
- Diagnosis
- Management
- Complication
Risk factors for intrauterine fetal demise: nulliparity, obesity, hypertension, and diabetes mellitus

Kleihauer-Betke test
Confirm or rule out fetomaternal hemorrhage
Evaluation of fetal demise
- Fetal
- Maternal

Postpartum urinary retention
- Risk factors
- Clinical features
- Management

Preeclampsia
- Definition
- Severe Features
- Management
- Fetal complications
- Fetal complications: Oligoydramnios and fetal growth restriction/small for gestational age infants due to chronic uteroplacental insufficiency

Management of patients >=37 weeks gestation with breech presentation
External cephalic version
Internal podalic version
Used for breech extraction of a malpresenting second twin
Breech delivery of a second twin has a lower risk of asphyxia than Cesarean and is not contraindicated

Pubic symphysis diastasis
- Risk factors
- Presentation
- Management

Femoral nerve damage
Can occur during delivery as a result of hyperfelxion of the thigh
Numbness over anterior and medial thigh, inability to extend the leg or flex the thigh, and diminished patellar reflexes

Risk factors for fetal macroscomia (Weight > 4 kg)
- Maternal
- Fetal

Low back pain during pregnancy
- Etiology
- Risk factors
- Imaging
- Mangement

Intrapartum fetal heart rate monitoring
- Early decelerations
- Late decelerations
- Variable decelerations

Chorioamnionitis
Maternal fever
Fetal tachycardia (baseline FHR > 160 bpm)
Fetal anemia
Sinusoidal fetal heart rate tracing
Recurrent variable decelerations
Occur with >50% of contractions
Require treatment to prevent fetal acidosis
- Maternal repositioning (to left lateral) - 1st line
- Amnioinfusion - 2nd line
Normal physiological changes during pregnancy (system, clinical finding, mechanism)
- Renal/urinary
- Heme
- Cardiovascular
- Pulmonary

Syphilis in pregnancy
- Screening
- Serologic tests
- Treatment
- Pregnancy effects
- Fetal efects

Timing of screening for Group B strep
35-37 weeks
Causes of hyperandrogenism in pregnancy
- Diagnosis
- Maternal clinical features
- Fetal virilization


Neonatal clavicular fracture
No intervention needed
Heals rapidly without intervention
Neonatal displaced clavicular fracture
- Risk factors
- Clinical features
- Diagnosis
- Treatment

Treatment of preeclampsia
- Drug
- Indication

Maternal cardiopulmonary adaptations to pregnancy
- Maternal adaptations
- Clinical manifestations

Ectopic pregnancy locations

Managment of a hemodynamically unstable patient with hemoperitoneum (bloiod in pelvis)
Emergency surgical exploration
Gestational diabetes mellitus
- Target blood glucose levels
- Treatment

Brachial plexus injuries

Management of shoulder dystocia (BE CALM)

Chorioamnionitis (intraamniotic infection)
- Risk factors
- Diagnosis

Late-term and postterm pregnancy complications
- Fetal
- Maternal


Uterine rupture
Presents with severe pain, antepartum bleeding, and loss of fetal status.
Uterine rupture rarely occurs in patients who have no had uterine surgery.
Uterine inversion
- Etiology
- Presentation
3. Management
If the placenta is still attached to the uterus, it should not be removed until after the uterus is replaced due to risk of massive hemorrhage.

Routine prenatal laboratory tests
- Initial prenatal visit
- 24-28 weeks
- 35-37 weeks

Montevedo units
Measure adequacy of contractions
of uterine contactions in 10 min x contraction strength
Adequate labor: 200 Montevideo units
Treatment of pyelonephritis in pregnancy
Ceftriaxone
Treatment of acute cervicitis
Ceftriaxone + azithromycin
(Covers gonorrhea and chlamydia)
Treatment of lactational mastitis
Dicloxacillin
Narrow spectrum penicillin that coers the two most frequent pathogens: MSSA and Group A Strep
Treatment of breast abscesses
Vancomycin
Postpartum endometritis
- Risk factors
- Clinical features
- Etiology
4. Treatment

Fetal position
Relatinship of the fetal presenting part to the maternal pelvis
Optimal feal position: occiput anterior (facilitates the cardinal movements of labor)
Deviations: Occiput transverse, occiput posterior
Fetal presentation
Lowest part of the fetus in the maternal pelvis
Most common: Vertex
Nonvertex presentations: breech, face
Fetal station
Measures the descent of the presenting part through the pelvis

Second stage arrest of labor
- Definition
- Risk factors
- Etiology
- Management
Second stage begins when the cervix is 10 cm dilated and ends with delivery

Fetal growth restriction (Symmetric versus Asymmetric)
- Definition
- Onset
- Etiology
- Clinical features
- Managment

Vaccines during pregnancy
- Recommended
- Indicated for high-risk patients
- Contraindicated

Management of pregnant patients exposed to varicella
If a patient lacks evidence of immunity (negative IgG serologic testing, no history of childhood infection), she is treated with postexposure prophylaxis.
Varicella-zoster immunoglobulin administration.
Varicella vaccine is contraindicated in pregnancy.
Magnesium toxicity
- Clinical features
- Treatment
- Common risk factor
- Common risk factor: Renal insufficiency, because magnesium is excreted solely by the kidneys

Preventing neonatal group B Streptococcus infection
- Universal screening
- Indications
- Prophylaxis

Preterm birth prevention

Risks associated with being Small for Gestational Age (SGA)
Hypoxia
Polycythemia
Hypoglycemia
Hypothermia
Hypocalcemia

Hydatidiform mole
Anechoic, cystic spaces (“snowstorm” on ultrasound)
Hydatidiform mole
- Clinical presentation
- Risk factors
- Diagnosis
- Management
Preeclampsia with severe features at <20 weeks gestation

Ectopic pregnancy
- RIsk factors
- Clinical features
- Diagnosis
- Management

Indications for prophylactic anti-D immune globulin administration for Rh(D)-negative patients
Anti-D immune globulin (RhoGAM) is indicate in unsensitized, Rh-negative women at 28 weeks gestation or within 72 hours of any procedure or incident in which there is any possibility of feto-maternal blood mixing.

Antiphospholipid antibody syndrome
False positive VDRL (FTA-ABS negative)
Prolonged PTT
Thrombocytopenia
Prophylaxis with low dose aspirin and LMWH