Which mode of ventilation allows for mechanical breaths only?

Which mode of ventilation allows for mechanical breaths only?

• A. Controlled
• B. Assisted
• C. IMV
• D. SIMV

Answer: (A)

The mode of ventilation that allows for mechanical breaths only is controlled mode ventilation. In this mode, the ventilator is set to deliver a predetermined number of breaths at a specific tidal volume or pressure, without any patient-triggered breaths. This means that the patient does not initiate any breaths themselves; all breathing is provided by the ventilator. Controlled ventilation is often used for patients who cannot initiate breaths on their own due to severe respiratory failure, sedation, or neuromuscular conditions. The primary goal is to ensure adequate ventilation and oxygenation by fully taking over the work of breathing. Other modes, such as assisted ventilation, allow the patient to trigger breaths while the ventilator supports them with additional volume or pressure. Intermittent Mandatory Ventilation (IMV) and Synchronized Intermittent Mandatory Ventilation (SIMV) provide a combination of mechanical and spontaneous breaths, allowing for some patient control over breathing while still providing mandatory breaths. Hence, these modes do not fit the criteria of delivering mechanical breaths only.

The mode of ventilation that allows for mechanical breaths only is controlled mode ventilation. In this mode, the ventilator is set to deliver a predetermined number of breaths at a specific tidal volume or pressure, without any patient-triggered breaths. This means that the patient does not initiate any breaths themselves; all breathing is provided by the ventilator.

Controlled ventilation is often used for patients who cannot initiate breaths on their own due to severe respiratory failure, sedation, or neuromuscular conditions. The primary goal is to ensure adequate ventilation and oxygenation by fully taking over the work of breathing.

Other modes, such as assisted ventilation, allow the patient to trigger breaths while the ventilator supports them with additional volume or pressure. Intermittent Mandatory Ventilation (IMV) and Synchronized Intermittent Mandatory Ventilation (SIMV) provide a combination of mechanical and spontaneous breaths, allowing for some patient control over breathing while still providing mandatory breaths. Hence, these modes do not fit the criteria of delivering mechanical breaths only.