UCLA EKG ACTUAL STUDY GUIDE EXAM

UCLA EKG ACTUAL / STUDY GUIDE EXAM

QUESTIONS WITH VERIFIED CORRECT ANSWERS GRADED A+

Injury - ---Answers---ST segment elevation (a sign of acute injury going on presently) (look for sad face)

• Injury indicates the acuteness of an infarct (acute or recent)

• can still save heart cells/reverse

Necrosis - ---Answers---significant Q waves (≥than 1 square wide or ≥1/3 amplitude)

• indicated by Q-waves which make the dx
• Infarction is completed, now dead tissue

(canNOT be reversed, permanent damage)

anterior wall - ---Answers---V1, V2, V3, V4

• occlusion of anterior descending coronary artery

Anteroseptal region - ---Answers---V1, V2

Inferior wall - ---Answers---II, III, aVF

• occlusion of right or left coronary artery
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Lateral wall - ---Answers---I, aVL and V5, V6

• occlusion of circumflex artery

Posterior wall - ---Answers---since no post lead look in V1 for unusually large R wave

• occlusion of right coronary artery

Angina pectoris - ---Answers---...

Unstable angina - ---Answers---...

Digitalis Effect - ---Answers---- shortened QT interval

• characteristic down-sloping ST depression (SCOOPING ST

seg)

Hyperkalemia - ---Answers---tall, peaked and narrow T

severe --> flattening of P wave, wide QRS, and tall T='sine wave'

Hypokalemia - ---Answers---- flat T present

• depressed ST seg
• U wave to prominent U wave

Pericarditis - ---Answers---ST segment elevated in ALL leads

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