The nurse on the telemetry unit has just received the A.M. shift report. Which client should the nurse assess first?

The client diagnosed with CHF who has 1+ pitting edema.

The client diagnosed with myocardial infarction who has an audible S3 heart sound.

The client with chronic renal failure who has an elevated creatinine level.

The client diagnosed with pneumonia who has a pulse oximeter reading of 94