NOVA- Anesthesiology ECG Exam 1 (New
2026/ 2027 Update) Questions & Answers
{Grade A} 100% Correct (Verified
Solutions)
What is the normal duration of the QRS complex? - Correct answer Normal duration:
0.06-0.1s
What is the normal duration of the ST segment?
-it correlates with the initial plateau phase of the myocardial cell action potential (Ca2+
influx) - Correct answer Normal duration: 0.08-0.12s
What is the normal amplitude and normal duration of the T wave? - Correct answer
Normal amplitude: 1/3-2/3 QRS
Normal duration: 0.16s (4 small squares)
-corresponds with the entire myocardial cell action potential
-duration is inversely proportional to HR, what is the normal duration of the QT
interval? - Correct answer Normal duration: 0.45s
,What are the 6 frontal plane leads? - Correct answer I, II, III, aVR, aVL, and aVF
Describe lead I - Correct answer 0°
-RA --> +LA
Describe lead II - Correct answer 60°
-RA--> +LL
Describe lead III - Correct answer 120°
-LA--> +LL
Describe aVR - Correct answer -150°
RA+
Describe aVL - Correct answer -30°
+LA
, Describe aVF - Correct answer +90°
+LL
What are the inferior frontal plane leads? - Correct answer II, III, aVF
What are the left lateral frontal plane leads? - Correct answer I and aVL
What is the right most frontal plane lead? - Correct answer aVR
What are the 6 horizontal plane leads? - Correct answer V1, V2, V3, V4, V5, V6
V1 views what region of the heart? - Correct answer Right ventricle
V2 views what region of the heart? - Correct answer Right interventricular septum
V3 views what region of the heart? - Correct answer Left interventricular septum
V4 views what region of the heart? - Correct answer Left ventricular apex
2026/ 2027 Update) Questions & Answers
{Grade A} 100% Correct (Verified
Solutions)
What is the normal duration of the QRS complex? - Correct answer Normal duration:
0.06-0.1s
What is the normal duration of the ST segment?
-it correlates with the initial plateau phase of the myocardial cell action potential (Ca2+
influx) - Correct answer Normal duration: 0.08-0.12s
What is the normal amplitude and normal duration of the T wave? - Correct answer
Normal amplitude: 1/3-2/3 QRS
Normal duration: 0.16s (4 small squares)
-corresponds with the entire myocardial cell action potential
-duration is inversely proportional to HR, what is the normal duration of the QT
interval? - Correct answer Normal duration: 0.45s
,What are the 6 frontal plane leads? - Correct answer I, II, III, aVR, aVL, and aVF
Describe lead I - Correct answer 0°
-RA --> +LA
Describe lead II - Correct answer 60°
-RA--> +LL
Describe lead III - Correct answer 120°
-LA--> +LL
Describe aVR - Correct answer -150°
RA+
Describe aVL - Correct answer -30°
+LA
, Describe aVF - Correct answer +90°
+LL
What are the inferior frontal plane leads? - Correct answer II, III, aVF
What are the left lateral frontal plane leads? - Correct answer I and aVL
What is the right most frontal plane lead? - Correct answer aVR
What are the 6 horizontal plane leads? - Correct answer V1, V2, V3, V4, V5, V6
V1 views what region of the heart? - Correct answer Right ventricle
V2 views what region of the heart? - Correct answer Right interventricular septum
V3 views what region of the heart? - Correct answer Left interventricular septum
V4 views what region of the heart? - Correct answer Left ventricular apex
