The patient is brought to the emergency department complaining of sudden onset crushing substernal chest pain. He is pale, diaphoretic, and can only speak in short sentences. His vital signs are notable for a heart rate of 118 bpm, respiratory rate of 22, and a blood pressure of 94/52 mmHg. Upon assessment, peripheral pulses are palpable but weak; lungs are clear; mild jugular venous distention is noted. The emergency medical services administered aspirin on arrival to the scene. The nurse anticipates performing which intervention first? 

The nurse is attempting to perform an electrocardiogram on a patient. The machine alerts the nurse that the V1, V4, and V5 electrodes are not picking up correctly. The nurse adjusts the leads in which locations? Select all that apply.  

The nurse is reviewing the arterial blood gas results of a patient in the ICU. They are as follows: pH = 7.30 PaCO2 = 52 mmHg PaO2 = 70 mmHg HCO3 = 24 mEq/L SaO2 = 90% How does the nurse interpret these results?