Fluid Rate Equation:
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The fluid rate equation calculates the appropriate intravenous fluid administration rate for veterinary patients by considering maintenance needs, existing deficits, and ongoing losses over a specified time period.
The calculator uses the fluid rate equation:
Where:
Explanation: The equation sums all fluid components (maintenance, deficit, and losses) and divides by the desired correction period to determine the appropriate infusion rate.
Details: Accurate fluid rate calculation is crucial for proper rehydration, maintenance of perfusion, and prevention of fluid overload in veterinary patients.
Tips: Enter all fluid components in milliliters and the desired correction time in hours. All values must be positive numbers, and time must be greater than zero.
Q1: How is maintenance fluid calculated?
A: Maintenance is typically calculated as 50-60 ml/kg/day for dogs and 40-50 ml/kg/day for cats, but should be adjusted for individual patient needs.
Q2: How do I estimate fluid deficit?
A: Deficit is estimated based on dehydration percentage (e.g., 5% dehydration in a 10kg animal = 500ml deficit).
Q3: What counts as ongoing losses?
A: Losses include vomiting, diarrhea, polyuria, wound drainage, or third-space losses that continue during treatment.
Q4: What's a typical correction time?
A: For moderate dehydration, 6-12 hours is common. Severe cases may need slower correction over 24-48 hours.
Q5: When should I adjust the rate?
A: Monitor patient response (hydration status, urine output, vital signs) and adjust as needed. Cardiac or renal patients may need lower rates.