7- OB Flashcards
What does FDLMP mean
First day of last menstrual period
What does GTPALM stand for
Gravies- # of pregnancies Term- # of term births (>37 weeks) Premature- # of births <38 weeks Abortion- Pregnancies before 20 weeks Living children- # of kids still alive Multiple pregnancies- # of times with multiple births
What is the normal gestational period
40 weeks
What is considered premature gestation
Less than 38 weeks
3 important questions for a pregnant patient assessment
- Due date
- Urge to push
- Contraction length
Does spotty, painless vaginal bleeding occur from egg implantation to the endometrium
Yes
What is triggered to happen due to egg implantation in endometrium
- Development of placental tissue
- Release of human chorionic gonadotropin (hCG)
- Corpus luteum is signaled that pregnancy has begun
What is the role of the corpus luteum for pregnancy
Produces hormones to support pregnancy until placenta sufficiently develops to assume this function
What does placenta do at the beginning of pregnancy
Produces projections to tap into the external layer of the blastocysts where spaces called lacunae form, and are filled with maternal blood
What happens when an egg becomes an embryo
Begins the process of forming specialized body systems
At what week does the heart start in an embryo
Around the end of week 3
At week 4 the placenta begins to develop and serves what key roles
- Respiratory gas exchange
- Transport nutrients
- Transfer heat from woman to fetus
- Hormone production
- Form barrier against harmful substances
What is the umbilical cord
Connects the placenta to the fetus via the fetal umbilicus
What do the umbilical vein and umbilical artery do
Umbilical vein- Oxygenated blood from placenta to fetus
Umbilical artery- Ateriovenous blood to the placenta
Role of the ductus veinous
Connects the umbilical vein and the inferior vena cava
Role of the ductus arterious
Connects the pulmonary artery and aorta
What is the foramen ovale
An opening in the atrial septum of the fetal heart
What is the amniotic sac
A membrane bag that encloses the fetus in a watery fluid of amniotic fluid
What is the role of amniotic fluid and the typical amount
Provide fetus with a weightless environment to develop
Typically 500-1000 mL
What can abnormal uterine size at length of time indicate
- Uterine growth problems
- Breech position
- Possibility of twins
What changes are there to a woman in pregnancy (6)
- Possible constipation
- Decreased GI motility
- Increased risk of vomiting
- Kidney increase in size and volume
- Increased urinary frequency
- Pregnancy mask
Circulatory system changes in women during pregnancy (6)
- Blood volume increases to meet new metabolic needs
- Red blood cell count increases
- White blood cell count increases
- Heart increases in size
- Cardiac output increases 30-50%
- HR increases 15-20 beats
What happens to BP during pregnancy and when
0-24 weeks- Decrease
24 weeks to birth- Increase
After birth- Gradual return to normal
What results from slowed venous return due to an enlarged uterus and what can result
- Pooling, defendant edema
- Hemorrhoids
- Vericose veins
-DVT and pulmonary embolism
What effect does slow venous return have on med administration
Delayed absorption of IM and SQ meds
What can increased workload on heart during labor cause (3)
- Ventricular failure
- Pulmonary edema
- Culminating heart failure
*Can result in cardia arrest
What happens to respiratory system during pregnancy (7)
- Abdominal muscles lose tones
- Respiration’s become more diaphragmatic
- Decreased airway resistance
- O2 consumption increases 20-40%
- Increased minute volume
- Resp alkalosis increases and is leveled by met acidosis
- RR increases
What occurs to the endocrine system during pregnancy (3)
- Pancreas secretes more insulin due to increased free cortisol and progesterone
- Estrogen can blunt the action of insulin
- Cellular sensitivity to insulin decreases
What do Primigravida/para, Multigravida/para, Grand Multipara and Nullipara mean
Primigravida- 1st time pregnant Primipara- Has only had 1 delivery Multigravida- 2 or more pregnancies Multipara- 2-5 deliveries Grand Multipara- More than 5 deliveries Nullipara- Woman has never delivered
Ex- 4 pregnancies, 3 miscarriages = G4P1 or G4A3P1
What do gravita and parity mean
Gravita- Number of times pregnant
Parity- Delivery after 20 weeks and alive
Explain Braxton Hicks contractions
False labor, uterus working out to prepare for birth
- Irregularly spaced
- Remains long
- Constant intensity
- Analgesics often abolish the pain
- No cervical changes
What should be done if delivery is imminent
- Vitals
- Estimate gestational age
- Listen for fetal heart tones
What is “lightening” in pregnancy
Feeling of relief of pressure in upper abdomen before labor
What is the “bloody show”
Plug of mucous sometimes mixed with blood from uterus, possibly weeks before labor starts
What is the first stage of labor
Beginning of cramping and contractions until fetus is repositioned to cervical opening
-Amniotic sac should rupture, cervix fully dilates to 10 cm
What is effacement in labor
The less muscular lower segment of uterus is pulled up over the presenting part