It is a weight-based dose rate used for continuous infusions, representing micrograms of drug per kilogram of patient weight per minute.

Vasopressor Infusion Calculator – Critical Care Flow | CalcTools

Calculate mcg/kg/min infusion rates for norepinephrine, dopamine, and more. Precision ICU service.

Managing shock in the ICU requires the precise titration of vasopressors to maintain organ perfusion. These medications are incredibly potent and are administered in micrograms (mcg), requiring complex calculations that factor in drug concentration, patient weight, and time. Our Vasopressor service bridges the gap between a physician's mcg/kg/min order and the infusion pump's mL/hr setting, providing a professional-grade solution for hemodynamic stability.

Medication

Weight (kg) (kg)

Ordered Rate

Standard: mcg/kg/min

Unit

Drug in Bag (mg) (mg)

Bag Volume (mL) (mL)

Pump Setting

26.25 mL/hr

Infusion rate: 26.25 mL/hr for Norepinephrine

MedicationNorepinephrine

Weight (kg)70 kg

Target Dose (mcg/kg/min)7 mcg/min

Solution Concentration16 mcg/mL

Dose assumes weight-based protocol.

Medical Disclaimer: This tool is for educational and informational purposes only. It is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.

How it Works

The tool converts the bag's mg to mcg, calculates the mcg/mL concentration, and then solves for the volume per hour needed to deliver the required mcg/min based on the patient's weight.

Calculation Formula

Rate = (mcg/kg/min × kg × 60) / concentration

Calculation Examples

1. **Levophed**: 70kg at 0.1 mcg/kg/min (4mg/250mL) = **26.3 mL/hr**.

Why use this tool in your daily life?

Titration is a delicate balance. This service provides the mathematical precision required to manage critically ill patients safely, ensuring that your hemodynamic interventions are exactly what the patient needs.