High risk pregnancy Flashcards
What are the components of the APGAR scale?
Appearance
Pulse
Grimace
Activity
Respiratory effort
What should you be evaluating for the A portion of the APGAR scale?
Appearance
Skin Color
Describe how an infant would present with the score of 1, and 2 on the APGAR scale for category A
0 - Pale blue
1 - body pink, extremities blue
2 - Body and extremities pink
Describe how an infant would present with the score of 0, 1 and 2 on the APGAR scale for the category of P
0 - no heart rate
1 - <100 bpm
2 - >100 bpm
Describe the G category of the APGAR scale
reflex irritability in response to stimuli
Basically does the baby respond if you piss it off
Describe how an infant would present with the score of 0, 1 and 2 on the APGAR scale for the category of G
0 - No response
1 - Grimace
2 - Cry cough sneeze
Describe how an infant would present with the score of 0, 1 and 2 on the APGAR scale for the category of A
0 - Limp
1 - some flexion
2 - well flexed
Describe how an infant would present with the score of 0, 1 and 2 on the APGAR scale for the category of R
0 - none
1 - weak or irregular
2 - strong cry
What can an ultrasound assess?
Fetal structure and activity
What can an ultrasound evaluate?
- Amniotic fluid level
- Placenta location
- fetal abnormalities
- Fetal Size and position
Why is it important to measure the heart rate of the fetus during delivery?
To ensure that the decelerations of the fetal heart rate are synchronized with the maternal contractions
What are early decelerations associated with?
- Associated with fetal head compression during contractions
- Lowest heart rate is at the peak of the contraction
T/F: early decelerations are not normal
False. Early decelerations are normal and indicate a proper response to the stimuli
What can cause late decelerations?
- Increase in fetal systemic blood pressure causes a drop in heart rate
- problems with chemo and baroreceptors
What is a fetal BPP?
fetal biophysical profile
What are the assessments of the fetal biophysical profile?
- Fetal tone
- fetal breathing movements
- Fetal body movements
- Amniotic fluid volume
- Results of the non-stress test
What tools are used to perform the fetal biophysical profile?
Ultrasound and non-stress test
What scores on the fetal BPP are indicative of good outcomes?
> 8
What scores on the fetal BPP are indicative of fetal compromise?
<4
What is an amniocentesis?
Invasive diagnostic test performed by inserting a needle into the uterus into the amniotic sac to withdraw amniotic fluid
What can an amniocentesis identify?
- Chromosome abnormalities
- Lung Maturity
When can an amniocentesis be performed?
16-18 weeks gestation
What information would we gather when assessing whether or not a patient is high risk pregnancy?
- Chronic conditions
- Past pregnancies
- Maternal Age
- Infections
- Pregnancy complications
Give some examples of indications of a high risk pregnancy
- Advanced maternal age
- Maternal hypertension
- Diabetes
- Placental disorders
- Umbilical cord disorders
- abnormal amniotic fluid
- substance abuse
- multiples
What are examples of viral infections that can result in a high risk pregnancy?
Hepatitis and HIV
What is the most common bacterial infection that indicates a high risk pregnancy?
Group B streptococci
What maternal habits could result in a high risk pregnancy?
- Smoking
- Alcohol
- Opioids
Describe placenta previa
implantation occurs abnormally low in the uterus partially or completely obstructing the cervix
What is a placental abruption?
the placental partially or completely separates from the uterine wall
What are maternal complications associated with placental abruption?
- Hemorrhage
- Preterm delivery
- Shock
- Acute renal Failure
- DeathW
What are fetal complications associated with placental abruption?
- Insufficient blood supply to the fetus
- Hypoxia
- death
Describe preclampsia?
chronic hypertension due to pregnancy
What are symptoms associated with preclampsia?
headache, blurry vision, stomach pain
What blood pressures are required for preclampsia?
> 140/>90
What is the only known cure for preclampsia?
yeetus the fetus/ delivery
Describe eclampsia
Hypertension with seizures
What is HELLP syndrome?
Life threatening pregnancy condition
What are the components of HELLP?
Hemolysis
Elevated liver enzymes
Low platelets
What is gestational diabetes?
insulin resistance due to pregnancy hormones that resolves after pregnancy
What are treatment options for gestational diabetes?
Diet and insulin
What are are some maternal complications associated with gestational diabetes?
- Spontaneous abortion
- Preclampsia
- preterm labor or delivery
- Polyhydramnios
What are are some fetal complications associated with gestational diabetes?
- Congenital anomolies
- Macrosomia
- Intrauterine growth restriction
- delayed lung maturity
- respiratory distress
What is polyhydramnios?
more than the normal amount of amniotic fluid
What is oligohydramnios?
lower than normal amniotic fluid
What is PROM
pre-labor rupture of membranes = water broke
What are the 3 umbrella terms for fetal orientation?
Cephalic-head first
Breech - butt or feet first
Transverse - shoulder first
What is the application of corticosteroids in preterm labor?
antenatal corticosteroid therapy leads to improvement in lung function by enhancing lung maturation
What can antenatal corticosteroid therapy reduce the instance of?
- RDS
- Intracranial ventricular hemorrhage
- necrotizing enterocolitis
- Sepsis
- Neonatal mortality
What steroids are generally given in preterm labor?
Betamethasone and dexamethasone
What are the tests to determine lung maturity?
- Shake test/ Foam stability index
- L/S ratio
- PG
- PC or DPPC
What does the foam stability index test?
- Assess total surfactant activity
- Mix amniotic fluid sample with ethanol and shake, if a stable ring forms, surfactant is present
What lamellar body count indicates immature lungs? Mature lungs?
<15000 = immature lungs
>50000 = mature lungs
What does the L/S ratio examine?
lecithin/sphingomelin
What L/S ratio is associated with good outcomes?
2:1
What does a L/S ratio of less than 2:1 indicate?
hyaline membrane disease or RDS
If a infant has an L/S ratio of less than 2:1, what treatment is recommended?
Surfactant replacement
What compound in the alveoli indicates that the fetal lung development has reached an advanced state?
PG
phosphatidyglycerol
At what point does PG appear in the amniotic fluid?
about 35 weeks
When is a pregnancy considered post term?
> 42 weeks
What factors could contribute to a post term pregnancy?
- Prior post term pregnancy
- maternal obesity
- Increasing maternal Age
- Nullparity- hasnt given birth before
What problems are associated with post term pregnancy?
- Fetal asphyxia secondary to hypoxemia
- decreased tolerance for labor and delivery
- Meconium aspiration syndrome
- Persistent pulmonary hypertension of the newborn
What are maternal risks associated with post term birth?
- C-section
- Dysfunctional labor
- Infection
- Postpartum hemorrhage
What are fetal risks associated with post term birth?
- Still birth
- Neonatal seizures
- Meconium aspiration
- Lower APGAR scores
- Umbilical cord compression
When is labor considered preterm?
when uterine contractions occur between 20 and 37 weeks gestation
When is a delivery considered preterm?
Delivery occurring after 20 weeks gestation but prior to 37 weeks