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Calcimator

Veterinary Anesthesia Calculator

Calculate anesthetic drug volumes for premedication, induction, and maintenance by species and body weight.

Inputs

lb
mg/kg
mg/mL
mg/kg
mg/mL
%
L/min
min

Results

Premed Volume

0.04 mL

Induction Volume

8 mL

Premed Dose0.4 mg
Induction Dose80 mg
Total Isoflurane Used0.4 mL
Total Oxygen Used120 L
Est. Recovery Time15 min
Total Time75 min
How to Use This Calculator
  1. Enter Body Weight, Species, and Dog.
  2. Set Cat, Horse, and Exotic.
  3. Adjust Premed Dose Rate, Premed Concentration as needed.
  4. Review Premed Volume (mL) and Induction Volume (mL).
  5. Use Premed Dose (mg) and Induction Dose (mg) to inform your decision.

What each input means

Body Weight
Patient body weight.
Species
Species affects metabolic rate and drug sensitivity.
Premed Dose Rate
Premedication dose rate (e.g., acepromazine 0.02 mg/kg).
Premed Concentration
Drug concentration of premedication.
Induction Dose Rate
Induction agent dose rate (e.g., propofol 4 mg/kg).
Induction Concentration
Induction agent concentration.
Isoflurane Setting
Vaporizer dial setting for maintenance.
Oxygen Flow Rate
Fresh gas flow rate.
Procedure Duration
Expected anesthesia maintenance time.

How this is calculated

Worked example, using the default values

  1. Identify Input Parameters
    4 parameters
    Body Weight = 20, Species = 1, Premed Dose Rate = 0.02, Premed Concentration = 10 = 9 input(s) provided
  2. Calculate Premed Volume
    Premed Volume
    0.04 = 0.04
  3. Calculate Induction Volume
    Induction Volume
    8 = 8
  4. Calculate Premed Dose
    Premed Dose
    0.4 = 0.4
  5. Calculate Induction Dose
    Induction Dose
    80 = 80

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