Fetal Heart Rate Interpretation System: Category I

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Questions and Answers

What is the normal range for the FHR baseline in Category I?

80-100 bpm
50-70 bpm
170-190 bpm
110-160 bpm (correct)

Which type of FHR variability is expected in a Category I tracing?

Marked
Moderate (correct)
Absent
Minimal

Are late decelerations a characteristic of Category I FHR tracings?

No, late decelerations are not present (correct)
Yes, frequent late decelerations are expected
Only if they are unprovoked
Yes, occasional late decelerations are acceptable

Which of the following decelerations is NOT expected in a Category I FHR tracing?

<p>Variable decelerations (D)</p> Signup and view all the answers

In a Category I FHR tracing, are prolonged decelerations present?

<p>No, prolonged decelerations are not present (D)</p> Signup and view all the answers

Flashcards

Category I FHR

Fetal Heart Rate (FHR) category that indicates a normal tracing, strongly predictive of normal acid-base status.

Normal FHR Baseline

FHR baseline should be between 110 and 160 beats per minute.

Moderate FHR Variability

Fluctuations in the FHR that indicate a healthy nervous system.

Late Deceleration

Gradual decrease in FHR that starts after the peak of the contraction and returns to baseline after the contraction ends; usually indicates uteroplacental insufficiency.

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Variable Deceleration

Abrupt decrease in FHR that can occur at any time related to contractions; often due to cord compression.

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Study Notes

Three-Tier Fetal Heart Rate (FHR) Interpretation System

Category I

Indicates a normal FHR tracing.
FHR baseline is within the range of 110-160 beats per minute (bpm).
Moderate FHR variability is present.
Absence of late decelerations.
Absence of variable decelerations.
Absence of prolonged decelerations.

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Description

Category I FHR tracings indicate a normal fetal heart rate pattern. Characteristics include a baseline FHR of 110-160 bpm. This Category also exhibits moderate variability, and an absence of late, variable, or prolonged decelerations.