OB/Peds Final Flashcards
The four P’s of labor
Psyche-emotional and mental state of mom
Passageway-boney pelvis; cervix; vagina
Passenger-fetus; size of skull; Fetal accommodation (lie, presentation, attitude, position, and station)
Powers-contractions
Newborn reflexes
Rooting- looking to feed
Suck- suckles on object placed in mouth
Moro- startle
Palmar grasp- will grasp anything placed in hand
Stepping- held in upright position, they move feet as if they’re stepping
Most important goal of a woman with gestational diabetes?
Glycemic control-check the A1C
Then:
Diet, Exercise, Med management
Contractions
Composed of three phases: increment, acme, and decrement
Duration: measured from the beginning of the increment to the end of the decrement.
Frequency: measured from the beginning of the increment to the beginning of the next increment; includes the contraction and the period of relaxation.
Stages and Phases of Labor
Stage 1: Dilation Phase 1: Latent phase Phase 2: Active phase Phase 3: Transition phase Stage 2: Birth Stage 3: Delivery of Placenta Stage 4: Recovery
Stage 1
Dilation; onset of true labor through full dilation of cervix at 10 cm
Phase 1
Latent Phase; Contractions of true labor through dilation of cervix to 4 cm
Phase 2
Active Phase; cervical dilation of 4 cm to 8 cm
Phase 3
Transition Phase; Cervical dilation of 8 cm to 10 cm aka complete dilation
Second Stage
Birth; Complete cervical dilation through birth; typically 20 mins to 60 mins
Third Stage
Delivery of Placenta; From birth to delivery of the placenta; <30 mins
Fourth Stage
Postpartum (recovery); from delivery of the placenta through 2-4 hrs post delivery; high risk for PP hemorrhage
Blood vessels that go through the umbilical cord
3 blood vessels (2 arteries, 1 vein). Arteries carry deoxygenated blood from the fetus to the placenta.
Vein carries oxygenated blood from the placenta to the fetus
Female Anatomy
Vestibule, Vagina, Cervix (lower part of the uterus), Uterus, Fallopian tubes, Ovaries
Path that sperm travels
Testes (seminiferous tubules), epididymus, vas deferens, seminal vesicle, prostate, urethra, vagina, cervix, uterus, fallopian tube, ovum
Naegles Rule
Add 7 days, subtract 3 months, change year as needed
GTPAL
Gravida- Total # of pregnancies
Term- # of pregnancies that ended at 38+ wks
Preterm- # of deliveries [20,37] wks
Abortion- # of pregnancies ending before 20 wks
Living children- # of children alive at the time Hx is taken
Menstrual Cycle
Ovarian Cycle: Follicular Phase (CD 1-CD 14; Follicle growth; follicle secretes estrogen) Luteal Phase (CD 15-CD 28; Corpus Luteum secretes progesterone)
Uterine Cycle: Menstrual phase (CD 1-CD 5-ish) Proliferative Phase (end of period to CD 14; lining responds to hormones and thickens) Secretory phase (CD 15-CD 26; progesterone maintains and thickens lining)
Ovulation:
CD 14; preceded by an LH spike
Fetal Heart Rate Tracing
Baseline: between 110 and 160 bpm; normal variability are fluctuations between 6 and 25 bpm
Accelerations: reassuring; spontaneous elevations
Early decels: reasurring; caused by fetal head pushing on structures in birth canal; looks like an upside down contraction; peak is at the acme; stops by the end of the contraction
Variable decels: non-reassuring; jagged, erratic shape; can happen at any time; thought to be caused by pressure on cord
Late decels: non-reassuring; smooth, U-shape; begin late in the contraction and recover after the contraction has ended; associated with uteroplacental insufficiency (diminished or deficient blood flow to the uterus and placenta).
Supine Hypotension Syndrome
preggo laying on their back, pressure from the wt of the amniotic fluid puts pressure on the vena cava and aorta decreasing blood flow for mama
S/S: Dizziness, lightheadedness, dec HR in fetus.
Tx: roll on side
Risk factors for PP hemorrhage
Precipitous delivery, macrosomic baby, preeclampsia, Hx of hemorrhage, perineal laceration, episiotomy, clotting disorders, fetal demise
Fetal circulation changes
Foramen Ovale: bypasses pulmonary circuit; gateway between the atria
Ductus Spinosus: bypasses liver circulation
Ductus Arteriosus:
directs blood from pulmonary trunk to aorta (thereby bypassing the lungs)