EXAM QUESTIONS & ACCURATE
CORRECT ANSWERS
intrinsic factors
extrinsic factors - Correct Answer ✔✔ intrinsic
fetal circulation
fetal tissue oxygenation
fetal heart regulation
extrinsic
maternal oxygenation
uterine blood flow
umbilical blood flow
average fetal hgb - Correct Answer ✔✔ 50-70 percents
normal cord gasses - Correct Answer ✔✔ ph greater than 7.10
pc02 less than 60 (if its greater than 60 respiratory acidosis)
base less than 12/-12 ( if its greater than its metabolic)
if both its mixed
pco2>60 yes? its respiratory
base > +/-12 yes? metabolic
yes to both mixed respiratory and metabolic acidosis
arterial gas is preferred
baroreceptors - Correct Answer ✔✔ regulates bp
when the arterial bp is increased the baroreceptors quickly detect the amount of stretch,
sending impulses via the vagus nerve to the midbrain. this causes sudden decrease in
fhr, co, and bp thereby protecting the fetus
variables with moderate variability are influenced by - Correct Answer ✔✔
baroreceptors
chemoreceptors
what do they do and what do they influence - Correct Answer ✔✔ regulate respiratory
activity and controls circulation
slows the fhr
, described in mechanism of late decels and variable decels resulting from umbilical
arterial occlusion coupled with hypoxemia
how often should you chart
1st stage of labor (active phase)
no risk factors
risk factors
2nd stage of labor (active pushing or pit administration)
no risk factors
risk factors - Correct Answer ✔✔ 1st stage
no risks q30m
risks q15m
2nd stage
no risks q15
risks q5
conditions associated with fetal bradycardia - Correct Answer ✔✔ Medications (Nubain,
Stadol, MS, MgSO4)
Sympatholytics ( B/P and Anxiety Meds)
Cardiac conduction abnormalities
Heart Block
Heterotaxy syndrome (rare birth defect involving the heart and other organs)
Structural cardiac defects
Viral Infection (CMV)
Sjogren's antibodies (autoimmune disease
Fetal heart failure
Maternal Hypoglycemia
Maternal Hypothermia
Interruption of fetal oxygenation
Post Maternal Seizure Activity
conditions associated with fetal tachycardia - Correct Answer ✔✔ Maternal
Fever/Infection
Medications/Drugs
Sympathomimetics:
Speed
Cocaine
Methamphetamine
Ephedrine
Terbutaline
Caffeine