Exam Review

Question 1

Where is the AV node specifically located?

Answer 1

• interatrial septum near the opening of the coronary sinus

Question 2

Where is the SA node specifically located?

Answer 2

• superior end of crista terminalis where SVA enters right atrium

Question 3

Increased levels of B-type natriuretic factor is a sign of:

Answer 3

congestive heart failure

Question 4

Blood supply to SA and AV nodes:

Answer 4

right coronary artery

Question 5

Blood supply to bundle of His:

Answer 5

anterior interventricular artery

Question 6

Normal QRS length:

Answer 6

3 small boxes (120msec)

Question 7

Normal PR interval length:

Answer 7

3-5 small squares

(120 - 200msec)

Question 8

Draw ESPVR curve of increasing preload:

Answer 8

Question 9

Draw ESPVR curve of increasing afterload:

Answer 9

Question 10

Draw ESPVR curve of increasing inotropy:

Answer 10

Question 11

Draw ESPVR curve of systolic HF:

Answer 11

increased EDV, increased ESV, decreased ESP

Question 12

Draw ESPVR curve of diastolic HF:

Answer 12

increased EDP, decreased EDV

Question 13

When does ventricular diastole occur on this graph?

Answer 13

phase 4

Question 14

Blood supply to the apex of the heart:

Answer 14

anterior interventricular artery (LAD)

Question 15

Normal R-R interval on ECG:

Answer 15

0.6-1.2 seconds