A Client Admitted to the Inpatient Medical-Surgical Unit Has Suffered

A client admitted to the inpatient medical-surgical unit has suffered sudden respiratory failure.The client's condition is getting worse; he is cyanotic (turning blue) with periods of labored breathing.What action should the nurse take first?

A) Study the discharge plan.
B) Check the graphic data for vital signs.
C) Examine the history and physical examination.
D) Look for an advance directive.