A nurse on a medical-surgical unit is caring for four clients. The nurse should recognize that which of the following clients is the highest priority?

A client who is postoperative following a laminectomy 12 hr ago and is unable to void.

A client who has methicillin-resistant Staphylococcus aureus (MRSA) and has an axillary temperature of 38° C (100.4" F).

A client who is newly diagnosed with pancreatic cancer and is scheduled to begin IV chemotherapy.

A client who has peripheral vascular disease and has an absent pedal pulse in the right foot.