On Plateau Pressure

Q: The plateau pressure (Pplat) on the ventilator should be measured with a pause at? (select one) 

A) end-inspiration 
B) end-expiration 


 Answer: A

Pplat is the reflection of static compliance of the whole respiratory system taking into account of lung parenchyma, chest wall, as well as an abdominal effect on respiratory mechanics, so the Pplat is measured while there is no airflow.

Knowing that Pplat should be measured at pause and at end-inspiration.

#pulmonary
#ventilators


References:

1. Stenqvist O. Practical assessment of respiratory mechanics. Br J Anaesth 2003; 91:92. 

2. Tobin MJ. Respiratory monitoring. JAMA 1990; 264:244. 

3. Marini, JJ. Lung mechanics determinations at the bedside: instrumentation and clinical applications. Respir Care 1990; 35:669.