CCDS EXAM 2024 ACTUAL EXAM COMPLETE 200
QUESTIONS WITH DETAILED VERIFIED ANSWERS (100%
CORRECT ANSWERS) /ALREADY GRADED A+
A very high PVC count could be attributed most likely to _______? - ANSWER: Atrial
undersensing
Most common cause of inappropriate mode switching? - ANSWER: FFRWOS
DOE with moderate activity is what class heart failure symptoms? - ANSWER: Class II
During EP study a ventricular arrhythmia inducible with PES is what type of
tachycardia? - ANSWER: Reentry
What has the ability to increase cardiac output the most? - ANSWER: Heart rate
All the following drugs could be used to treat CHF except - ANSWER: Diuretics, ACE
inhibitors, Beta blockers (not CCB)
Single chamber ICD during implant has high DFTs (RV coil only ICD lead) what actions
might be taken? - ANSWER: Reposition the lead, reverse the polarity
Wenckebach interval - ANSWER: MTR interval - TARP. MTR interval-(PVARP+shortest
AVD)
Desirable slew rate in ventricle - ANSWER: >.5 V/sec
PMT algorithm is not terminating PMT, what could be the cause? - ANSWER: PMT is
slower than the MTR
If you have multiple PMT episodes what risks come with extending PVARP? -
ANSWER: Early 2:1 block
Common cause of safety pacing - ANSWER: PVC falling into the crosstalk detection
window
After receiving inappropriate shocks a pt presents to the ED and a magnet is applied,
what response will ICD have on the pacing? - ANSWER: No effect
Which of the following would be appropriate actions to take in the presence of
safety pacing - ANSWER: Decrease atrial output, increase ventricular blanking period
ATP is most effective for what type of arrhythmia - ANSWER: Reentry
What percentage of CRT patients are considered non-responders - ANSWER: 30%
, A dual coil integrated bipolar trans venous lead senses and paces between -
ANSWER: distal coil and tip electrode
acute complications of device implant - ANSWER: pneumothorax, hemothorax, lead
perforation (not infection)
Which drug is known to decrease DFTs - ANSWER: Sotalol
Pacing RVA causes what change in QRS? - ANSWER: RsR in V6
Ventricular based device --> when you AP VS, you will be - ANSWER: pacing the
atrium faster than the base rate
most common cause of systolic heart failure - ANSWER: ischemic heart disease
LBBB - ANSWER: QS pattern in V1, QRS > 120 ms
Causes of PMT - ANSWER: Loss of atrial capture, PVCs, atrial underspending
ECG characteristic of WPW - ANSWER: delta waves
Drugs used for rate control for patients in AF w/RVR - ANSWER: CCB, BB
What did the pain free and pain free II trials show? - ANSWER: ATP is effective for
fast VT
What is the average time an ICD takes to charge to max output - ANSWER: 10
seconds
Which of the following is a poor prognostic sign for a patient with HCM? - ANSWER:
Hypotension with exercise (not tachycardia, DOE)
Methods to induce VF in the lab - ANSWER: Shock on T, DC fibber, 50 HZ burst
Brugada syndrome - ANSWER: -Autosomal dominant disorder most common in Asian
males.
-ECG pattern of pseudo-right bundle branch block and ST elevations in V1-V3.
-⬆️ risk of ventricular tachyarrhythmias and SCD. Prevent SCD with implantable
cardioverter-defibrillator (ICD).
Normal safety margin following DFT testing - ANSWER: 10J
How often should automatic capacitor reform be done on an ICD - ANSWER: once
every 90 days
Characteristic of propofol for sedation - ANSWER: decrease in respiratory function
QUESTIONS WITH DETAILED VERIFIED ANSWERS (100%
CORRECT ANSWERS) /ALREADY GRADED A+
A very high PVC count could be attributed most likely to _______? - ANSWER: Atrial
undersensing
Most common cause of inappropriate mode switching? - ANSWER: FFRWOS
DOE with moderate activity is what class heart failure symptoms? - ANSWER: Class II
During EP study a ventricular arrhythmia inducible with PES is what type of
tachycardia? - ANSWER: Reentry
What has the ability to increase cardiac output the most? - ANSWER: Heart rate
All the following drugs could be used to treat CHF except - ANSWER: Diuretics, ACE
inhibitors, Beta blockers (not CCB)
Single chamber ICD during implant has high DFTs (RV coil only ICD lead) what actions
might be taken? - ANSWER: Reposition the lead, reverse the polarity
Wenckebach interval - ANSWER: MTR interval - TARP. MTR interval-(PVARP+shortest
AVD)
Desirable slew rate in ventricle - ANSWER: >.5 V/sec
PMT algorithm is not terminating PMT, what could be the cause? - ANSWER: PMT is
slower than the MTR
If you have multiple PMT episodes what risks come with extending PVARP? -
ANSWER: Early 2:1 block
Common cause of safety pacing - ANSWER: PVC falling into the crosstalk detection
window
After receiving inappropriate shocks a pt presents to the ED and a magnet is applied,
what response will ICD have on the pacing? - ANSWER: No effect
Which of the following would be appropriate actions to take in the presence of
safety pacing - ANSWER: Decrease atrial output, increase ventricular blanking period
ATP is most effective for what type of arrhythmia - ANSWER: Reentry
What percentage of CRT patients are considered non-responders - ANSWER: 30%
, A dual coil integrated bipolar trans venous lead senses and paces between -
ANSWER: distal coil and tip electrode
acute complications of device implant - ANSWER: pneumothorax, hemothorax, lead
perforation (not infection)
Which drug is known to decrease DFTs - ANSWER: Sotalol
Pacing RVA causes what change in QRS? - ANSWER: RsR in V6
Ventricular based device --> when you AP VS, you will be - ANSWER: pacing the
atrium faster than the base rate
most common cause of systolic heart failure - ANSWER: ischemic heart disease
LBBB - ANSWER: QS pattern in V1, QRS > 120 ms
Causes of PMT - ANSWER: Loss of atrial capture, PVCs, atrial underspending
ECG characteristic of WPW - ANSWER: delta waves
Drugs used for rate control for patients in AF w/RVR - ANSWER: CCB, BB
What did the pain free and pain free II trials show? - ANSWER: ATP is effective for
fast VT
What is the average time an ICD takes to charge to max output - ANSWER: 10
seconds
Which of the following is a poor prognostic sign for a patient with HCM? - ANSWER:
Hypotension with exercise (not tachycardia, DOE)
Methods to induce VF in the lab - ANSWER: Shock on T, DC fibber, 50 HZ burst
Brugada syndrome - ANSWER: -Autosomal dominant disorder most common in Asian
males.
-ECG pattern of pseudo-right bundle branch block and ST elevations in V1-V3.
-⬆️ risk of ventricular tachyarrhythmias and SCD. Prevent SCD with implantable
cardioverter-defibrillator (ICD).
Normal safety margin following DFT testing - ANSWER: 10J
How often should automatic capacitor reform be done on an ICD - ANSWER: once
every 90 days
Characteristic of propofol for sedation - ANSWER: decrease in respiratory function
