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## Memorize ### Minute Ventilation - How many liters of air or oxygen a patient is breathing in per minute. - Formula: Ve = RR x Vt ### Total Flow - The total amount of air or oxygen a device is delivering to a patient. - Formula: Total Flow = Ratio Parts x Flow - Ratio Parts: The addition of...

## Memorize ### Minute Ventilation - How many liters of air or oxygen a patient is breathing in per minute. - Formula: Ve = RR x Vt ### Total Flow - The total amount of air or oxygen a device is delivering to a patient. - Formula: Total Flow = Ratio Parts x Flow - Ratio Parts: The addition of the air entrainment ratios - Flow setting of the flowmeter ### Flow Demand - How much air or oxygen the patient requires in terms of flow. - Formula: Flow Demand = Minute Ventilation x 3 - Minute Ventilation: See above - 3: A evidence-based constant, which will always be 3 ### Flow Meter Settings - Where to set a flowmeter to deliver a particular "Total Flow". - This formula is just a variation of the Total Flow formula. - Formula: Flow = Total Flow / Ratio Parts - Flow setting on the flowmeter.