Medicine > QUESTIONS & ANSWERS > EKG Final Exam Review | Graded A+ (All)

EKG Final Exam Review | Graded A+

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How can cardiac output be calculated? Correct Answer: Stroke volume multiplied by heart rate Briefly explain the Excitability properties of cardiac cells. Correct Answer: Ability of the cells to resp ... ond to electrical stimulation What node is the natural pacemaker that generates 60-100 bpm? Correct Answer: Sino Arial (SA) Node The EKG Technician would place how many leads to the chest and how many leads to the limb to obtain a 12 lead EKG? Correct Answer: 6 electrodes to the chest and 4 electrodes to the limbs Lead 3 is what kind of lead? Correct Answer: Bi-polar lead What electrodes do you combine to form a Lead II? Correct Answer: LL and RA Where are the V4 and V2 electrodes placed, on a 12 lead EKG? Correct Answer: 5th intercostal space at left midclavicular line and 4th intercostal space to left of sternum. Which wave represents Ventricular Repolarization? Correct Answer: T wave On a EKG graph, which wave represents Atrial Depolarization? Correct Answer: P Wave What is a normal P-R Interval Correct Answer: 0.12-0.20 msec Describe a 3rd degree (Complete) heart block? Correct Answer: No association between P waves and QRS complexes Describe what a loose electrode looks like on an EKG graph Correct Answer: Loose electrode: Artifact caused by insufficeient contact between the electrode and the skin What is the diagram representing? Correct Answer: Sinus rhythm with a wondering baseline (Movement; poor electrode contact; Breathing) How many BPM is the following EKG representing? Correct Answer: 75 BPM Showing professional telephone etiquette includes what? Correct Answer: Identifying yourself and your department whenever placing or receiving a call. How many electroleads are used in a 12 lead EKG? Correct Answer: 10 Electrodes What would a "T" Wave inversion indicate on a EKG Graph? Correct Answer: Ischemia (Labeled a NSTEMI; Non-ST Elevation Myocardial Infarction) What would be the duration of one large box on a EKG Graph? Correct Answer: 0.20 seconds [Show More]

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