# At 34 weeks of gestation, a nurse reviews selected events from an antepartum nonstress test. Click the event that meets the gestational-age criteria for an acceleration.

> source: MyMerci (mymerci.kr)  
> url: https://mymerci.kr/pages/nclex_q.php?qn_id=581189&lang=en  
> language: en  
> subject: Reduction of Risk Potential  
> category: ROR

## Question

At 34 weeks of gestation, a nurse reviews selected events from an antepartum nonstress test. Click the event that meets the gestational-age criteria for an acceleration.

![](https://mymerci.kr/data/nclex/hotspot/regen_20260908_2350/HSR526.svg)

## Explanation

C rises 20 beats/min for 24 seconds. It meets both criteria for this gestational age.

## In-depth explanation

Quick answer
C. C rises 20 beats/min for 24 seconds. It meets both criteria for this gestational age.
Why this is the best choice
At 34 weeks, both a rise of at least 15 beats/min and a duration of at least 15 seconds are required. Compare height with baseline and measure onset to return, not the plateau alone. This item identifies one event; it does not classify the entire NST as reactive.
Clinical picture
The observations are fictional teaching data. Apply the stated context; the selected feature does not by itself replace a complete bedside assessment.
Memory hook
Use gestational age, amplitude and duration together.
Decision rule
Use gestational age, amplitude and duration together.
Why the other regions do not fit
A lasts long enough but rises only 12 beats/min. B rises 22 beats/min but returns in 12 seconds. D rises 12 beats/min for 12 seconds; the lower preterm criteria do not apply at 34 weeks.
**Sources**
- Acceleration thresholds differ before versus at or after 32 weeks.

## Key concepts

- **Gestational age and acceleration duration** — Use gestational age, amplitude and duration together.
- **Comparison with context** — B has the largest rise but insufficient duration; D fits lower gestational-age thresholds.

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