232 Bradyarrhythmias

Question 0

Normal snrt

Answer 0

<1500 ms

Question 1

Longest pause after cessation. Of overdrive pacing of right atrium near the SA node

Answer 1

Sinus node recovery time

Question 2

One half the diff between inteinsic cycle length ans noncompensatory pause after a pre ature atrial stimulus

Answer 2

Sinoatrial conduction time (SACT)

Question 3

Aim of therapy in SA node dysfunction

Answer 3

Alleviation of symptoms

Since it is not associated with mortality

Question 4

MC causes of pathologic bradycardia

Answer 4

SA node dysfunction

aV conduction block

Question 5

Common on the young
Results from high vagal tone
Found in 10% of adults

Answer 5

Transient AV block

Question 6

Location of SA node

Answer 6

Atrial SVC junction

Sulcus terminalis

Question 7

Specific indicator of intrinsic SA node disease

Answer 7

Abnormal SNRT
Abn SACT
Low IHR

Question 8

Increase SNRT (N=<1500 ms) in patients with SA node dysfunction

Answer 8

B blockers and CCBs

Question 9

Improve SA node function by shortening SNRT

Answer 9

Digitalis

Question 10

Rx SA node dyafunxtion

Answer 10

Isoproteronol

Atropine

Question 11

Boundaries triangle of Koch

Answer 11

P: coronoary sinus ostium
A: septal tricuspid valve
S: tendon of Todaro

Question 12

Node affected

sLE
RA
MCTD

Answer 12

Sa node

Av node

Question 13

Node affected

Acute and chronic CAD

Answer 13

Sa node

Question 14

Cushings response

Increased inteacranial pressure

Answer 14

Sa node

Question 15

Endotracheal suctioning via activation of vagal nerve

Answer 15

Sa node

Question 16

Node affected

Lyme
Chagas dse

Answer 16

Av node

Question 17

Av node conduction time

AH interval

Answer 17

<130 ms