Pediatric Echo Z-Score Calculator (PHN Model)
Use PHN pediatric model references to map BSA to Z-score bands and calculate measured-value Z-scores quickly.
The Pediatric Heart Network (PHN) model estimates expected structure sizes from BSA and reports Z-score ranges for pediatric echo interpretation.
Internal calculation units are centimeters, while displayed values are shown in millimeters for clinical readability.
Pediatric Echo Z-score
Pediatric Echo Z-score Calculator
Indexed mean/SD inverse model. Internal math in cm, display values in mm.
BSA (m²)
—
Input
Allowed reference range: 0.15–2.50 m² (results still compute outside range with warnings).
Optional BSA from Height/Weight
Calculated BSA: —
Structure
Z=-2
Z=0
Z=+2
Measured value (optional forward Z-score)
Measured Z-score: —
Methodology & interpretation notes
- PHN reference model; internal unit is cm and displayed values are mm.
- Z-score interpretation should consider growth stage, diagnosis, and serial trends.
- Pediatric/adolescent reference use only; avoid direct adult extrapolation.
- This calculator supports clinical assessment but does not replace physician judgment or institutional protocols.