The nurse has received a change of shift report on assigned clients. Which client would the nurse assess first?

A client with pleural effusion who reports an increase of coughing with pleuritic pain 4/10.

A client with cor pulmonale with a PaO2 of 78mmHg who is being discharged home on oxygen.

A client with COVID-19 with acute onset of worsening dyspnea.

A client with acute respiratory distress syndrome (ARDS) who is scheduled for prone positioning.