The Nurse Is Caring for a Patient Who Has a Heart

The nurse is caring for a patient who has a heart rate of 98 beats per minute and a blood pressure of 82/58 mm Hg. The patient is lethargic, is complaining of muscle weakness, and has had gastroenteritis for several days. Based on this patient's vital signs, which sodium value would the nurse expect?

A) 126 mEq/L
B) 140 mEq/L
C) 145 mEq/L
D) 158 mEq/L