The patient is pale and dizzy following a gunshot wound to the groin. Minimal bleeding is noted at the site. Vital signs are notable for a heart rate of 125 bpm and a blood pressure of 73/39 mm Hg. Two unsuccessful attempts have been made to establish an IV site. He loses consciousness. Which action does the nurse take next?

Following an infection with rhinovirus, the patient reports initial improvement followed by significant congestion and upper teeth pain. The nurse anticipates which diagnosis?

Which electrolyte imbalance will decrease the ability of the patient’s muscle cells to reach the action potential and contract?