17th February 2025

You are asked to review a 35-year-old man with Pneumocystis pneumonia who is desaturating on the ward.

You are asked to review a 35-year-old man with Pneumocystis pneumonia who is desaturating on the ward. 

Observations are as follows: oxygen saturations 91% on 5L nasal cannula.

An arterial blood gas shows the following: pH 7.36, pO2 8.9, pCO2 4.5.

What is the next most appropriate treatment escalation?

Select the SINGLE most appropriate option from the list below. Select ONE option only.