Minute Ventilation in IMV/SIMV Calculator

Combines mechanical and spontaneous breaths to calculate minute ventilation during IMV/SIMV.

Inputs

Color mode links each input to the matching equation term and solving arithmetic.

Equation and Work

Equation:
Solving steps:
Total VE
—
L/min
Mechanical VE
—
L/min
Spontaneous VE
—
L/min
Normal/reference: Typical adult resting VE is often about 5–10 L/min, but clinical targets depend on PaCO₂, dead space, metabolic demand, and ventilator strategy.

Clinical Significance

Combines mechanical and spontaneous breaths to calculate minute ventilation during IMV/SIMV.

This calculator expands that idea by identifying the relevant measured values, substituting the selected inputs, and carrying the arithmetic through in the solving steps.

Used to estimate combined minute ventilation when mandatory and spontaneous breaths coexist.

Calculator output should be interpreted with the patient’s condition, measurement quality, and local clinical policy.

References (APA 7th Edition)

  1. Chang, D. W. (2020). Respiratory Care Calculations (Revised 4th ed.). Jones & Bartlett Learning. Formula content adapted from the uploaded text/reference packet.