Neonatal Bilirubin Bhutani Nomogram Zone

Determine neonatal bilirubin risk zone (Low/Low-Intermediate/High-Intermediate/High) from gestational age and hours of life, guiding phototherapy and exchange transfusion decisions.

Weight
Height
Clinical Guidance

BMI is a screening measure of body size, not a direct measure of body fat. The standard WHO categories are underweight (<18.5), normal (18.5–24.9), overweight (25–29.9), and obese (≥30).

BMI can overestimate body fat in athletes with high muscle mass and underestimate it in older adults with low muscle mass. Interpret it alongside waist circumference and clinical context rather than as a standalone diagnosis.

⚕ Clinical Disclaimer: These calculators are for educational and reference purposes only. Always verify results with qualified clinical judgment and current clinical guidelines. Do not use as a sole basis for medical decisions.
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How It Works

Determine neonatal bilirubin risk zone (Low/Low-Intermediate/High-Intermediate/High) from gestational age and hours of life, guiding phototherapy and exchange transfusion decisions

Each component has a specific meaning:

  • Gestational age — The gestational age recorded for the scenario being assessed.
  • Hours of life — The hours of life recorded for the scenario being assessed.
  • Guiding phototherapy — The guiding phototherapy recorded for the scenario being assessed.
  • Exchange transfusion decisions — The exchange transfusion decisions recorded for the scenario being assessed.

Note: Interpret the bhutani nomogram result against the thresholds and context described above.

How to Use

Enter the gestational age, hours of life, guiding phototherapy, exchange transfusion decisions for the scenario you are assessing. Determine neonatal bilirubin risk zone (Low/Low-Intermediate/High-Intermediate/High) from gestational age and hours of life, guiding phototherapy and exchange transfusion decisions. Use the bhutani nomogram result to inform your calculation.

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Frequently Asked Questions