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?

The nurse is taking care of a patient undergoing a lumbar puncture. Following the test, the patient complains of a severe headache. Which of the following responses by the nurse is the most appropriate?

The patient with which condition is at risk for obstructive shock?