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The QRS complex on the ECG represents which of the following?

Diaphoresis exhibited in a patient actively having an MI is due to:

A 73 year old female complains of calf pain when she flexes her foot. She is recovering from a knee surgery and has a history of cardiac bypass surgery. Her calf is swollen and warm. What should you suspect?

What is the initial effect on the heart from stimulation of the parasympathetic nervous system?

You are preparing to cardiovert a patient who presents with a perfusing ventricular tachycardia and is symptomatic and unstable. Why is it important to turn on the synchronizing circuit of the defibrillator?

Match the numbers on the image to the corresponding portion of the cardiac conduction system:

The resting potential of a myocardial contractile cell is how many mV’s?

The proportion of the blood volume that is pumped out of the left ventricle during systole is termed:

An adult cardiac arrest patient remains in ventricular fibrillation after the initiation of high quality CPR, three defibrillation attempts and 1 mg of epinephrine 1:10,000 IV. According to the AHA algorithm, what medication would you administer next to this patient?

Your patient is a 83 year-old female that is c/o chest tightness and episodes of being lightheaded when she stands up. Pt’s vital signs are: B/P 172/90, P 190-220’s, R 22, SPO2 95%, G 104. The patient presents with the following ECG: Based on this information, what would be your next critical intervention?