The patient in the intensive care unit who is intubated and mechanically ventilated abruptly requires a drastically increased fraction of inspired oxygen (FiO2) and is hypoxic, hypotensive, and tachycardic. Which intervention does the nurse perform first?

The 24-year-old female patient presents to the emergency department with hematemesis. She rarely drinks alcohol and has no known medical conditions. She is afebrile and her laboratory tests are normal, though she has signs of dehydration. The physician diagnoses the patient with Mallory-Weiss Syndrome. The nurse assesses the patient for which conditions?

The nurse is asked to help treat a patient brought in by ambulance in cardiogenic shock secondary to an acute ST-elevation myocardial infarction. The patient is cyanotic with significant jugular venous distention, peripheral edema, and dyspnea from pulmonary edema. Which of the following treatments would be most appropriate for this patient?