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Fluid Balance Calculator

Calculate 24-hour fluid balance from intake and output with maintenance fluid estimate.

Aroha Tane RNVerified

BN (Hons), Registered Nurse, NZNO Member

Registered nurse with 10 years in emergency and critical care across NZ. Specialises in clinical decision support and drug calculation safety.

Oral intake (mL)

IV / NG input (mL)

Urine output (mL)

Drains / other output (mL)

Patient weight (kg)

Enter values above to see your result

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