Possible EKG Test Questions (1)
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Medicine
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Jan 9, 2024
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Possible EKG Test Questions
Which of the following are the natural pace makers of the heart? SATA SA node, AV node, Purkinje fibers
Number of beats for the pace makers: SA Node 60-100, AV Node 40-60, Purkinje Fibers 20-40
Blood flow through the heart: right atrium to right ventricle to lungs to left atrium to left ventricle to aorta to rest of body
Which of the following represent the P wave? SATA Atrial kick, SA node firing, blood going from the atrium to the ventricle, atrial depolarization
What does this complex mean? What does this wave mean?
What does the QRS complex represent? SATA Electrical current going from AV node to Purkinje fibers, ventricles sending blood to the lungs and the body, atrium relaxation (hidden behind QRS complex). NOT TRUE: SA node firing
What is the QT interval? SATA Electrical current going from AV node to Purkinje fibers, ventricles sending blood to the lungs and the body, atrium relaxation, ventricular relaxation (T
wave)
There is always repolarization and relaxation of the chambers before the next heartbeat even if we can’t see it. True or False? True
What does U wave represent? Hypokalemia If you see this rhythm what is the priority? Oxygen (NSTEMI) or aspirin (STEMI)
If you see this rhythm, what has happened? Ischemia (NSTEMI) or infarct (STEMI)
If the patient has no heartbeat what are you going to do? Cardiovert or Defibrillate? Defibrillate
If the patient is in V fib what is the main priority? Defibrillate, you might have to start CPR on them. It is NOT cardiovert
What is the priority for V tach? Defibrillate (to bring electricity back to heart) if no pulse
If you see V tach rhythm what is the first thing you would do? Check pulse
If you don’t feel a pulse, what is the priority? Defibrillate If you don’t feel a pulse, what is the first thing you would do? Start CPR, activate code blue/emergency alert/action plan
A patient already has a defibrillator hooked up to them and they go into V tach what is the first thing you would do? Defibrillate
If patient has a pulse, what is the priority? Vagal maneuvers Vagal maneuvers SATA. Bearing down, Coughing, Blowing through a straw, Carotid massage, Gagging, Dunk head in ice water, Valsalva maneuver
If you see V fib rhythm what is the first thing you would do? Start CPR
If you see V fib rhythm what is the priority? Defibrillate
What are the only shockable rhythms? V-Fib and pulseless V-Tach
What is the treatment option for Torsades de pointes rhythm? Magnesium
What is the first thing you would do for Asystole rhythm? Check that the patient didn’t unplug
the leads, check the equipment, then start CPR Which of the following are shockable rhythms? SATA V fib and pulseless V tach. Answer choices: pulse V tach, pulseless V tach, V fib, Asystole, SVT
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