Mechanical ventilation in critical illness Flashcards
This MV mode delivers a set minimum number of mandatory breaths and also allows the patient to trigger (or assist) additional breaths.
Volume control-assist-control
What is unrecognized positive alveolar pressure at end exhalation during MV?
Intrinsic PEEP (PEEPi)
The only way to detect and measure PEEPi is to?
Occlude the expiratory port at end expiration while monitoring airway pressure
Is a series of interventions related to ventilator care that have been identified to significantly reduce the incidence of ventilator-associated pneumonia.
Ventilator bundle
Ventilator bundle components (4)
1) Elevate head of bed
2) Daily sedation vacations
3) Stress ulcer prophylaxis
4) DVT prophylaxis
What is compliance?
Compliance is a measure of distensibility and is expressed as the change in volume for a given change in pressure.
Is measured during the delivery of airflow at the end of inspiration.
Peak pressure
Is measured during an end-inspiratory pause, during a no-flow condition, and reflects the static compliance of the respiratory system, including the lung parenchyma, chest wall, and abdomen.
Static pressure
Normal values for both dynamic and static compliance are? (range)
60-100 mL/cm H2O
Normal compliance value?
10 cmH2O
Is ventilation in the prone position an option for patients who are difficult to oxygenate?
Yes
Three indications for MV
1) Inadequate respiratory drive
2) Inability to maintain alveolar ventilation
3) Hypoxia
Risk factors for auto-PEEP (4)
1) High minute ventilation
2) Small ET
3) COPD
4) Asthma
The first step in the care of the hypoxic patient fighting the ventilator is to?
Ventilate the patient manually with 100% oxygen
