SHARP EKG EXAM LATEST 2026 ACTUAL EXAM WITH COMPLETE
QUESTIONS AND CORRECT DETAILED ANSWERS (100% VERIFIED
ANSWERS) |ALREADY GRADED A+| ||PROFESSOR VERIFIED||
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What is the right coronary artery? - ANSWER-Supplies the right
atrium and ventricle, inferior and posterior surface of the left
ventricle.
What is the left anterior descending artery? (3) - ANSWER-1.
Branch of the left coronary artery
2. Supplies anterior surface of the left ventricle and septum
3. Supplies the bundle branch system
What is the circumflex artery? (2) - ANSWER-1. Branch of the left
coronary artery
2. Supplies the lateral and posterior portions of the left ventricle
Impulse traveling toward a positive electrode will show what kind
of a deflection? - ANSWER-Positive deflection from the isoelectric
line
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Impulses traveling away from a positive electrode will show what?
- ANSWER-Negative deflection
Impulses traveling perpendicular (at a right angle) to a positive
electrode will show what? - ANSWER-Equiphasic
What are the 5 characteristics of a normal P wave? - ANSWER-1)
smooth and rounded
2) <2.5mm in height
3) <0.12 in width
4) positive deflection in lead 2
5) one P wave for each QRS
What are the five different types of ABNORMAL P waves? -
ANSWER-1. Tall and peaked
2. Wide and notched
3. Small and pointed
4. Inverted
5. Absent
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What does a tall and peaked P wave represent? - ANSWER-Right
atrial enlargement
What does a wide and notched P wave represent? - ANSWER-
Left atrial enlargement
What does a small and pointed P wave represent? - ANSWER-
Ectopic
What does a inverted P wave represent? - ANSWER-Ectopic
What does a absent P wave represent? - ANSWER-Ectopic
What is the J point on an EKG? - ANSWER-Where the ST
segment levels out
What are the 3 reasons why a QRS can be abnormal? -
ANSWER-1. Block in impulse thru the right or left bundle branch
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2. Impulses arrive at the bundle branches early before
repolarization initiating early depolarization causing a abnormal
ventricular conduction = wide QRS
3. Electrical impulse originating from an ectopic site in the
ventricle.
Where does the electrical impulse travel thru for a QRS complex?
- ANSWER-Electrical impulse from the bundle of His throughout
the ventricular myocardium
What are causes of ST elevation? (6) - ANSWER-1. Acute MI
2. Coronary vasospasm
3. Pericarditis
4. Ventricular aneurysm
5. Hyperkalemia
6. Early repolarization
What are some causes of ST depression? (5) - ANSWER-1.
Myocardial ischemia
2. Right and left ventricular hypertrophy