Chapter 30: The Biophysical Profile Flashcards
Blood pH below 7 resulting from an increase in hydrogen concentrations because of impaired blood supply to the fetus
acidosis
Rough estimate of the fluid surrounding the fetus obtained through the measurement of four pockets of amniotic fluid, one from each of the abdominal quadrants
amniotic fluid index
amount of fluid within the amniotic sac surrounding the fetus; the AFI is an estimate of this amount
amniotic fluid volume
decrease in oxygen content of the blood accompanied by an increase in carbon dioxide
asphyxia
monitoring of fetal activity to include breathing movements, discrete movements, tone, and fluid surrounding the fetus accompanied by a nonstress test
Biophysical profile
technique of concurrently recording the fetal heartbeat and uterine contractions
cardiotocography
incorrect negative test result when the state being tested is present
false negative
positive result when the state being tested is absent
false positive
abnormally high level of circulating carbon dioxide
hypercapnia
reduced blood oxygen levels
hypoxemia
prenatal testing including only the NST and AFI
modified BPP
Recording of fetal heart rate accelerations (normal) or decelerations (abnormal) because of blood oxygen level changes resulting from uterine contractions
nonstress test
low fluid surrounding the fetus
oligiohydramnios
intravenous injection of oxytocin causing the uterus to contract; monitoring of fetal reaction to uterine contractions aims to determine how the fetus reacts to environmental stress
oxytocin challenge test
Measure of alkalinity or acidity of the blood; 7 is neutral, greater than 7 is alkaline, and less than 7 is acidic
pH
present of two or more fetal heart rate accelerations of at least 15 beats per minute lasting at least 15 seconds and associated with fetal movement in 40 minutes
Score 2 NST