Prenatal care and fetal monitoring Flashcards
How is a pregnancy confirmed?
first urine b-hcg
then a blood b-hcg (detectable 8 days after conception)
then an US
What labs need to be ordered if your pt wants to get prego?
Rubella (immunize and wait 4 weeks)
Varicella (immunize before pregnancy)
Hepatitis B
HIV
Syphilis
Toxoplasmosis (if negative, avoid exposure to garden soil, cat feces, raw meat)
CMV and parvovirus B19-if negative, frequent handwashing and universal precautions for child care or health care workers
Genetic carrier testing based on ethnicity and family history
what type of smoking cessation can be used during pregnancy?
SR buproprion
Glucose challenge test is performed when?
28 weeks, if >140 do a 3 hr test
Maternal serum AFP check is performed when?
14-22 weeks
Vaginal culture for group B strep is performed when?
32 weeks, repeat gonorrhea and chlamydia testing
where is the fundal height at 20 weeks?
umbilicus
where is the fundal height at 12 weeks
pubic symphysis
after how many weeks does the fetus descend into the pelvis?
36
Leopold’s Maneuver
Determines fetal position, done near end of pregnancy
safe OTC meds
Tylenol Benadryl Robitussin plain or DM Sudafed not first trimester Claritin Mylicon, Gas X Tums, Mylanta, Pepcid Zantac Prevacid Benzoly Peroxide, Salicylic Acid
safe antibiotics
Amoxicillin Ampicillin Augmentin Bactrim (unsafe 1st trimester and after 38 weeks) E-mycin Keflex Flagyl Macrobid (not safe to use after 38 weeks Clindamycin Z-PACK
fetal heart beat seen on Trans vaginal ultrasound when? fetla HR can be obtained when?
6 Weeks
12 weeks, 120-160 bpm
what % of pregnancy are losses?
15%
10-12% in the 1st trimester
Only 3% lost after 8 weeks of gestation
when is quad screen drawn and what does it include?
16-18 weeks
estriol, hcg, inhibin A, and AFP
increase suggests neural tube defect
decrease suggests Down Syndrome, genetic abnormality, or disparity in dates
Level II Ultrasound performed when
18-22 Weeks
If AFP and/or Level II abnormal offer Amniocentesis
when is the 2nd trimester completed?
27 weeks
triad of pre-eclampsia
HTN
proteinuria
+/- edema
this usually occurs in the 3rd trimester
what is a normal term pregnancy?
37 weeks
when should the pt go to the hospital?
contractions every 5-10 minutes
when is a non-stress test performed? how is it performed?
after 40 weeks on a weekly basis
Procedure:
Mother in left lateral supine position with continuous fetal heart rate tracing done
Normal fetus will respond with a 15bpm acceleration in heart rate lasting for 15 sec above baseline heart rate after a significant movement
2 accelerations in a 20 min period = reactive NST
BPP (Biophysical Profile)
Systematic evaluation of the fetus, amniotic fluid volume, & placenta.(reflects fetal status @ time of test)
scalp pH
pH of 7.3 is normal
7.20-7.25 guarded: repeat
Below 7.2: expedite delivery
MCC of newborn blindness in 3rd world countries?
chlamydia
herpes can lead to ( ) in newborns
CNS or ophthalmic damage
076 protocol
used for pts with AIDS
AZT orally from 14 weeks until term
IV AZT during labor
Neonatal administration of AZT syrup