pacing and capture

Question 1

Associer à un tracé: 
Which answer(s) is(are) true regarding this tracing?
Your answerChoice
Selected

A. the programmed mode is VVI 60 beats/minute

B. the programmed mode is VVI 70 beats/minute

Selected

C. there is a failure of right ventricular capture

D. there is a failure of ventricular sensing

Selected

E. the intrinsic rhythm of the patient is a complete atrioventricular block

Question 2

Associer à un tracé: 
Which answer(s) is(are) true regarding this tracing?
Your answerChoice

A. this is a manual ventricular threshold measurement by the operator

Selected

B. this is an automatic ventricular threshold measurement by the device
 

C. the ventricular threshold measurement is based on the analysis of the evoked response

D. the threshold value is measured at 0.5 V

Selected

E. the threshold value is measured at 0.625 V

Question 3

Which answer(s) is(are) true regarding ventricular AutoCaptureTM?
Your answerChoice
Selected

A. in the most recent pacemakers, ventricular AutoCaptureTM is only programmable with a bipolar lead

B. the ventricular pacing threshold is automatically measured every 20 hours

Selected

C. in the event of loss of capture, a 5 V backup pulse is delivered 80 to 100 ms after the first stimulus

Selected

D. the ventricular pacing amplitude is automatically adjusted with a programmable safety margin between 0.25 V and 1.5 V

E. the pacemaker automatically adjusts the delivered amplitude and pulse duration

Question 4

Associer à un tracé: 
Which answer(s) is(are) true regarding this tracing?
Your answerChoice

A. there is a failure of atrial sensing

B. there is a failure of atrial capture 

C. there is a retrograde atrial conduction

D. there is an onset of PMT 

Selected

E. there is presence of crosstalk

Question 5

Associer à un tracé: 
Which answer(s) is(are) true for atrial ACapTM Confirm?
Your answerChoice
Selected

A. capture control is based on the morphology analysis of the evoked atrial response

Selected

B. the maximum amplitude that can be delivered is 5 Volts

Selected

C. there is a cycle-to-cycle control of atrial capture all throughout the day
 

D. the safety margin varies according to the measured threshold

Selected

E. the safety margin is programmable

Question 6

Associer à un tracé: 
What is the most likely diagnosis?
Your answerChoice

A. dislodgement of the atrial lead

Selected

B. dislodgement of the ventricular lead

C. inversion of the 2 leads

D. increase in atrial pacing threshold

E. increase in ventricular pacing threshold