Practice Question
A pregnant client, who is 35 weeks along, comes in for weekly fetal heart monitoring. After 20 minutes on the monitor, the fetal heart rate tracing shows three accelerations measuring 15 beats by 15 seconds. How should the nurse report this finding to the provider?
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Correct Answer:
Reactive nonstress test (NST).
Rationale:
💠 A reactive NST is defined by at least two accelerations of the fetal heart rate (FHR) in 20 minutes, each increasing by ≥15 beats per minute and lasting for ≥15 seconds in a fetus ≥32 weeks.
💠 This fetal tracing showed three accelerations of 15×15, indicating good fetal oxygenation and intact CNS responsiveness.
💠 A nonstress test (NST) is non-invasive and done without inducing uterine contractions, making it different from contraction stress tests (CST).
💠 No contractions were introduced, so this test is not a CST (eliminating choices A and C).
💠 Non-reactive NST refers to absent or insufficient accelerations and would be a concerning finding requiring further evaluation.
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This question is from Indiana University OB-Maternal exam 3 which contains 44 questions.
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Question Details
- Category: RN Nursing Exam(s)
- Subcategory: General Exams
- Domain: 🤱🏼Maternity & Newborn Care
- Answer Choices: 4