Umbilical Cord Blood Gas Interpretation (Arterial/Venous)

Interpret umbilical arterial (UA) and venous (UV) cord blood gas values at birth. UA pH <7.0 with BD >12 mmol/L defines metabolic acidosis associated with HIE. Differentiates acute vs chronic hypoxia from pattern of UA vs UV discordance.

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

Interpret umbilical arterial (UA) and venous (UV) cord blood gas values at birth. UA pH <7.0 with BD >12 mmol/L defines metabolic acidosis associated with HIE. Differentiates acute vs chronic hypoxia from pattern of UA vs UV discordance

Each component has a specific meaning:

  • Pattern of UA vs UV discordance — The pattern of ua vs uv discordance recorded for the scenario being assessed.

Note: Interpret the cord blood gas result against the thresholds and context described above.

How to Use

Enter the pattern of UA vs UV discordance for the scenario you are assessing. Interpret umbilical arterial (UA) and venous (UV) cord blood gas values at birth. UA pH <7.0 with BD >12 mmol/L defines metabolic acidosis associated with HIE. Differentiates acute vs chronic hypoxia from pattern of UA vs UV discordance. Use the cord blood gas result to inform your calculation.

Frequently Asked Questions