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Heparin Infusion Formula:
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The Heparin Infusion Dose Calculator determines the appropriate infusion rate for heparin administration based on patient weight, desired dose, and medication concentration. It helps ensure accurate and safe anticoagulation therapy.
The calculator uses the heparin infusion formula:
Where:
Explanation: The formula calculates the infusion rate needed to deliver the prescribed heparin dose based on the patient's weight and medication concentration.
Details: Accurate heparin infusion calculation is crucial for achieving therapeutic anticoagulation while minimizing bleeding risks. Proper dosing ensures effective treatment for conditions like deep vein thrombosis, pulmonary embolism, and acute coronary syndromes.
Tips: Enter desired dose in units/kg/hr, patient weight in kg, and concentration in units/mL. All values must be positive numbers. Double-check concentration as heparin comes in various strengths.
Q1: What are typical heparin infusion rates?
A: Typical maintenance doses range from 12-18 units/kg/hr, but always follow specific institutional protocols and physician orders.
Q2: How often should heparin infusions be monitored?
A: APTT levels should be checked every 6 hours after initiation or dose change until therapeutic, then every 24 hours while on infusion.
Q3: What concentrations does heparin come in?
A: Common concentrations include 25,000 units/250mL (100 units/mL) and 25,000 units/500mL (50 units/mL). Always verify the specific concentration.
Q4: Are there weight limitations for this calculation?
A: The formula works for all weights, but extreme obesity may require adjusted dosing. Consult specific guidelines for morbidly obese patients.
Q5: When should bolus doses be considered?
A: Bolus doses are typically given for acute indications but are separate from maintenance infusion calculations. Follow specific protocol guidelines.