Introduction to Mechanical Ventilation

Flashcards covering key concepts about mechanical ventilation, its functions, goals, and key components.

Mechanical Ventilation

A life support method that assists or replaces spontaneous breathing.

Goals of Mechanical Ventilation

Main goals include maintaining gas exchange, reducing work of breathing, reversing respiratory muscle fatigue, allowing lung healing, and preventing further lung injury.

Power Supply in Ventilators

Primary power source is AC electrical outlet; backup power is from an internal battery to ensure continuous ventilation.

Drive Mechanisms

Systems that generate the force to deliver gas to the patient, including pneumatic and electric drive systems.

Pneumatic Drive Systems

Uses compressed gas as a power source; advantages include simplicity and reliability, disadvantages involve a need for compressed gas supply.

Electric Drive Systems

Uses electric motors for gas flow generation; offers precise control and a wide range of ventilation modes, but requires electrical power.

Gas Delivery Function

Provides positive pressure to deliver gas into the lungs, controlling variables like tidal volume and respiratory rate.

Monitoring Function in Ventilation

Ensures safety by monitoring airway pressures, volumes, flow rates, and respiratory mechanics.

Alarm Systems in Ventilators

Alerts healthcare providers to potential problems related to pressure, volume, respiratory rates, and oxygenation.

Types of Ventilator Circuits

Includes single-limb circuit with exhalation valve, double-limb circuit, and single-limb circuit without exhalation valve.