exam 2 Flashcards
VEAL CHOP
variable- cord compressions
early - head compression
accelerations - are ok
late - perfusion/placental issue
what are factors that impact fetal perfusion?
maternal hypertension, abruptio placenta, diabetes, smoking, substance, abuse, maternal supine position, post0term pregnancy, uterine tachysystole
what is uterine tachystystole?
more than 5 contractions in 10 minutes averaged over a 30 minutes window
how does uterine blood flow change with contractions?
during a contraction peak, there is potentially no blood flow into the uterus, placenta, and baby
what is the difference between hypoxemia and hypoxia?
oxemia is just in the blood, where hypoxia is in the tissues (worse)
what are some of the results of a decrease in placental perfusion?
after tissue hypoxia, there is a release of lactic acid, and anaerobic metabolism in tissues, then metabolic acidosis, very low tissue pH, and then Injury or death
how do you calculate Montevideo Units?
take the peak minus the resting tone, add them up over a 20 minutes period
MVUs > 200 are adequate for 90% of labor
brady cardia
<110 – need to fill in
tachy cardia
need to fill in
what is the sinusoidal pattern?
a smooth regular, wavelike pattern,
amplitude of 5-15 bpm occuring 3-5 times in 1 min lasting for 20 minutes or longer
most of the time is benign (pseudo sinusoidal) - cased by fetal sucking or medications
moderate
5-25 in acelerations
category 1 includes ALL of these
normal baseline rate 110-160
moderate variability
no late or variable decels
early decels: + or -
accelerations: + or -
category 2 includes
all other patterns not included in category 1 or 3
category 3
either:
absent variability with any of these: recurrent lates, recurrent variables, bradycardia OR sinusoidal pattern
GOAL: orrect abnormal oxygen, prepare for C-section if no improvement
initiate intrauterine resuscitation, continues EFM
a nurse is doing a fundal assessment of a pt and finds that the uterus is 2 fingers (2cm) above the umbilicus and displaced to the right. What actions should the nurse take related to this finding?
assist the pt to the bathroom to urinate and reassess the fundus after they empty the bladder