ANSWERS 2025-2026| GRADED A+
The most highly oxygenated blood C. Ductus venosus
in fetal circulation is carried by:
If fetal arterial pressure begins to A. Baroreceptors cause vasoconstriction and increase the FHR
fall below normal levels:
Fetal heart rate variability is B. Amplitude and frequency
defined as fluctuations in the
baseline that are
irregular in _____ and _.
An increase in the fetal heart rate A. Occlusion of the umbilical vein
immediately preceding a variable
deceleration is caused by:
When assessing a FHR tracing, the C. Establish the baseline rate
first step is to:
Which deceleration in the FHR is A. Early deceleration
considered benign and does not
require an intervention to
correct?
If the umbilical vein is the only B. Oxygenated blood may be restricted from being delivered to the fetus
vessel occluded during cord
compression
During a fetal sleep cycle, FHR C. Minimal
variability is usually ____.
Uterine tachysystole is defined as: B. >5 contractions in 10 mind over 30 minutes
Maternal-fetal oxygen and nutrient B. intervillous space
transfer takes place in the:
During a contraction, the A. Pressure created by tensing of uterine muscle
tocodynamometer detects:
Normal fetal heart rate baseline is: C. 110-160 bpm
, Following birth, a fetal cord C. Mixed acidemia
blood sample is taken. The
results are:
pH: 6.95
pCO2: 86
mmHg pO2:
4mmHg BE: -
18.6 mEq/L
These results are best interpreted as:
A characteristic of variable B. The onset of the deceleration is abrupt
decelerations is:
Stimulation of the vagus nerve in a A. A decrease in the fetal heart rate
healthy fetus will cause:
What is the baseline rate? B. 145 bpm
What is the correct interpretation? B. Baseline of 160 bpm with recurrent late decelerations
What is the primary physiologic B. Maximize oxygenation
goal?
Based on the tracing, the most B. Decrease oxytocin from 14 to 7 mU/min and start a 500-mL IVFB.
appropriate interventions are:
Which of the following is a correct C. The tracing of uterine activity requires palpation for accurate assessment
interpretation of the tracing?