# Question: How do you calculate IV fluid for dogs?

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The volume of rehydration fluids required is determined by reassessing hydration parameters after resuscitation, using the following formula: % dehydration × body wt (kg) × total body water (0.6). This volume is commonly administered throughout 4–12 hours with standard isotonic, balanced electrolyte replacement fluids.

## How do you calculate IV fluids?

The formula to calculate how many hours will it take for the IV to complete before it runs out is: Time (hours) = Volume (mL) Drip Rate (mL/hour) . The volume of the fluid is 1 000 mL and the IV pump set at 62 mL/hour.

## How do vets calculate ongoing fluid losses?

As an example, the daily fluid needs of a 5-kg patient that is estimated to be 6% dehydrated (to be corrected over 24 hours) and has estimated ongoing losses of 1 mL/kg per hour can be calculated as follows: Dehydration deficit: 5 kg × 0.06 = 0.3 L × 1000 = 300 mL to be corrected over 24 hours (300 mL/24 h) = 12.5 mL/h.

## How many drops is 100 ml per hour?

Reference Chart of Drops per Minute

 20 100 IV Tubing Drop Factor Desired Hourly Rate: ML / HR 10 DROP/ML 3 16 15 DROP/ML 5 25 20 DROP/ML 6 32

## What is the 421 rule?

Traditionally, the first step in determining the hourly fluid requirements for a child described by Holliday and Segar and coined as the “4/2/1” rule: For children < 10 kg their hourly fluid needs are body weight (kg) x 4. For children 10-20 kg, their hourly fluid needs are 40 ml + (BW – 10 kg) x 2 .

## How much IV fluid can you give a dog?

Initial rapid infusion for dogs should be 20 to 40 ml/kg IV (one half this amount for cats) for 15 minutes, followed by 70 to 90 ml/kg (dogs) or 30 to 50 ml/kg (cats) administered over one hour.

## How long can a dog stay on IV fluids?

Efficacy of Fluid Therapy in Dogs

Fluid therapy can achieve adequate resuscitation rapidly and the retained fluid can aid in intravascular expansions for up to 12 hours (colloids).

## Can I give my dog IV fluids at home?

Administering supplemental fluids can benefit dogs with a variety of medical conditions. Most commonly, home fluid therapy is recommended for dogs with kidney disease or chronic kidney disease (also known as chronic renal failure).

## How do vets calculate dehydration rate?

Fluid deficit: • If present, the fluid deficit needs to be calculated and this can be done by estimating the percentage dehydration: • e.g. A 35kg dog that is estimated to be 8% dehydrated • Percentage dehydration is estimated to be 8% of the body weight and then this is converted into fluid units: • e.g. 35kg x 0.08 = …

## How do vets calculate fluid rates?

To calculate the patient’s fluid deficit, the veterinarian will multiply the patient’s body weight (lb) by the percent dehydration as a decimal and then multiply it by 500. The result of this calculation is the amount of fluid a patient needs to become rehydrated if there are no ongoing losses.

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## How do you calculate replacement for fluid loss?

This is determined by multiplying the percentage dehydration times the patient’s weight (e.g. 10% dehydration in a 10 kg child: 10% of 10 Kg = 1 kg = 1 liter). Subtract any boluses from this volume (e.g. 1 liter – 400 ml of boluses = 600 ml).