FHS Calculator

Calculate Fetal Heart Score (FHS) to assess fetal well-being during non-stress tests.

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About This Tool

The FHS Calculator is a specialized medical tool that helps healthcare professionals and expectant parents assess fetal well-being by calculating the Fetal Heart Score. This score evaluates fetal heart rate patterns during non-stress tests (NST) based on three key parameters: accelerations, variability, and decelerations. Each parameter is scored from 0-2, with a maximum total score of 8. A score of 8 indicates a reactive NST with normal fetal heart patterns, while lower scores may indicate the need for further monitoring or intervention. This tool provides instant calculation with clear interpretation guidelines.

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How to Use

Enter the number of fetal heart rate accelerations (≥15 bpm for ≥15 seconds) in 20 minutes
Select the baseline variability level (amplitude range in bpm)
Select the type of decelerations observed
Click 'Calculate FHS Score' to get immediate results
Review the detailed score breakdown and interpretation

Frequently Asked Questions

Find Quick Answers

What is Fetal Heart Score (FHS)?

Fetal Heart Score is a scoring system used to interpret non-stress test (NST) results. It evaluates three components of fetal heart rate: accelerations (0-2 points), variability (0-2 points), and decelerations (0-4 points), with a maximum score of 8.

What does a score of 8 mean?

A score of 8 indicates a reactive NST with normal fetal heart patterns. This means there are adequate accelerations, normal variability, and no significant decelerations, suggesting good fetal well-being.

When should I use this calculator?

This calculator is designed for educational purposes and for healthcare professionals to quickly assess FHS during fetal monitoring. Always consult with a qualified healthcare provider for medical decisions.

What are the scoring criteria?

Accelerations: 0 points for 0, 1 point for 1, 2 points for ≥2. Variability: 0 points for <5 bpm, 1 point for 5-9 bpm, 2 points for ≥10 bpm. Decelerations: 0 points for none, 2 points for mild/variable, 4 points for severe/late.

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