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Ramer · Alavi Nuclear Medicine Technology

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8 Cardiovascular System Scintigraphy1) What portion of an EKG wave represents thedepolarization of the ventricles?a. QRS complexb. P-wavec. ST segmentd. T-wave2) A patient is only able to tolerate 3 images during a 201 Tlchloride myocardial perfusion study. From those viewslisted, which would be the best choice of images toobtain?a. RAO 10, LAO 45, and left lateralb. anterior, LAO 25 and LAO 60c. anterior, LAO 45 and LAO 70d. anterior, LAO 70 and left lateral3) Within what time frame must imaging be initiatedfollowing injection of 201 Tl chloride in an exerciseperfusion study?a. within 5 minutesb. within 10–15 minutesc. within 20–30 minutesd. within a 4 hours4) Of the choices offered, which is the best imaging viewfor calculating right ejection fraction?a. RAO 60%b. RAO 30%c. anteriord. LAO 10%

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