Question 1 · Medium
A nonstress test at 36 weeks shows a baseline of 140 beats/min and three accelerations of 20 beats/min lasting 20 seconds within 20 minutes. The nurse should interpret this as:
- APositive, showing uteroplacental insufficiency
- BNonreactive, needing a biophysical profile
- CReactive, a reassuring result
- DNegative, needing a contraction stress test
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Answer: C · Reactive, a reassuring result
At 32 weeks or more, a nonstress test is reactive when there are at least two accelerations of 15 beats/min or more, lasting at least 15 seconds, within 20 minutes. This tracing meets that standard, which shows an intact fetal autonomic nervous system and good oxygenation. A reactive result is reassuring and routine surveillance continues. This tests analysing cues.
- A: Positive and negative are terms for the contraction stress test, not the nonstress test.
- B: Nonreactive would mean fewer than two qualifying accelerations in the time window.
- D: No further testing is needed for a reactive result; the stress test terms do not apply.