IBHRE CEPS TEST PRACTICE EXAM QUESTIONS WITH
ANSWERS (100% CORRECT ANSWERS) /ALREADY
GRADED A+
ACT for using array - ANSWER -ACT 250-300
bipolar cardiac electrodes record local _________ that occur during
phase _______ - ANSWER -depolarizations / phase 0
surface EKG leads usually filtered at what - ANSWER -.1 - 100 Hz
Normal EGM filter settings - ANSWER -30 - 300 Hz
What to do if T waves interfere with A/V and why - ANSWER -
Increase the high pass filter because T waves are lower frequency as
well as far field
Unipolar filter setting - ANSWER -.05 - 300 Hz
How each is measured: Diagnostic catheter OD , Inflated balloon cath
OD, Needle OD, Guide wire - ANSWER -Diag: Fr / Balloon: mm /
Needle: gauge / GW: inch (thousandth of inches)
Standard sizes of micropuncture introducer sets and their purpose -
ANSWER -21 gauge needle / .018 inch wire. Purpose of micropuncture
introducer set is for placement of .035-.038 inch GW
Best needle to use for pericardial space via subxyphoid approach -
ANSWER -Tuohy needle
,which type of guide wire is 260-300 cm long? - ANSWER -exchange
guide wires (much longer than diagnostic catheter)
advantage of bipolar leads - ANSWER -less prone to EMI noise
Unipolar leads more prone to - ANSWER -1. EMI / muscle artifact
oversensing
2. pectoralis muscle stimulation (pocket stim)
Steroid tip leads reduce acute: - ANSWER -inflammation and
stimulation threshold
Best numbers for ventricular lead - ANSWER -Threshold <1 V /
Sensing >4 mV
programmed stimulation - ANSWER -Consists of incremental pacing
and extrastimuli
Sharp, curved GW used to go transseptal - ANSWER -SafeSept
Guidewire
Baylis NRG RF Transseptal needle has - ANSWER -Side holes for
pressure and contrast
Ultrasound transducers are composed of - ANSWER -Piezoelectric
crystals
How do ultrasound transducers work - ANSWER -Transducers convert
one form of energy into another. Ultrasound transducers convert electric
, signals into ultrasonic energy. The ultrasonic energy is transmitted into
tissues, bounces back and then is converted back to electric energy
doppler transducer uses what - ANSWER -single piezoelectric crystal
that sends and receives
In cardiovascular doppler, what is target off of which ultrasound waves
are reflected back - ANSWER -RBC's
ICE advantage over TEE - ANSWER -General anesthesia not needed
for ICE
What is used to visualize shunts or distinguish right from left chamber -
ANSWER -Agitated saline
Where does conductive heating occur - ANSWER -2-5 mm beneath
electrode
typical lesion size of 7 Fr 4 mm dry tip - ANSWER -5-6 mm wide / 2-3
mm deep
What to do when using irrigated ablation catheter at more than 30 W
and why - ANSWER -increase flow rate to 15-30 ml/min to avoid char
formation
What happens to pump when coming on ablation - ANSWER -increases
flow (8-30 ml/min)
Never do what with cryoballoon - ANSWER -never pull balloon sheath
of catheter, only pull it back onto shaft / dont pull back while frozen
ANSWERS (100% CORRECT ANSWERS) /ALREADY
GRADED A+
ACT for using array - ANSWER -ACT 250-300
bipolar cardiac electrodes record local _________ that occur during
phase _______ - ANSWER -depolarizations / phase 0
surface EKG leads usually filtered at what - ANSWER -.1 - 100 Hz
Normal EGM filter settings - ANSWER -30 - 300 Hz
What to do if T waves interfere with A/V and why - ANSWER -
Increase the high pass filter because T waves are lower frequency as
well as far field
Unipolar filter setting - ANSWER -.05 - 300 Hz
How each is measured: Diagnostic catheter OD , Inflated balloon cath
OD, Needle OD, Guide wire - ANSWER -Diag: Fr / Balloon: mm /
Needle: gauge / GW: inch (thousandth of inches)
Standard sizes of micropuncture introducer sets and their purpose -
ANSWER -21 gauge needle / .018 inch wire. Purpose of micropuncture
introducer set is for placement of .035-.038 inch GW
Best needle to use for pericardial space via subxyphoid approach -
ANSWER -Tuohy needle
,which type of guide wire is 260-300 cm long? - ANSWER -exchange
guide wires (much longer than diagnostic catheter)
advantage of bipolar leads - ANSWER -less prone to EMI noise
Unipolar leads more prone to - ANSWER -1. EMI / muscle artifact
oversensing
2. pectoralis muscle stimulation (pocket stim)
Steroid tip leads reduce acute: - ANSWER -inflammation and
stimulation threshold
Best numbers for ventricular lead - ANSWER -Threshold <1 V /
Sensing >4 mV
programmed stimulation - ANSWER -Consists of incremental pacing
and extrastimuli
Sharp, curved GW used to go transseptal - ANSWER -SafeSept
Guidewire
Baylis NRG RF Transseptal needle has - ANSWER -Side holes for
pressure and contrast
Ultrasound transducers are composed of - ANSWER -Piezoelectric
crystals
How do ultrasound transducers work - ANSWER -Transducers convert
one form of energy into another. Ultrasound transducers convert electric
, signals into ultrasonic energy. The ultrasonic energy is transmitted into
tissues, bounces back and then is converted back to electric energy
doppler transducer uses what - ANSWER -single piezoelectric crystal
that sends and receives
In cardiovascular doppler, what is target off of which ultrasound waves
are reflected back - ANSWER -RBC's
ICE advantage over TEE - ANSWER -General anesthesia not needed
for ICE
What is used to visualize shunts or distinguish right from left chamber -
ANSWER -Agitated saline
Where does conductive heating occur - ANSWER -2-5 mm beneath
electrode
typical lesion size of 7 Fr 4 mm dry tip - ANSWER -5-6 mm wide / 2-3
mm deep
What to do when using irrigated ablation catheter at more than 30 W
and why - ANSWER -increase flow rate to 15-30 ml/min to avoid char
formation
What happens to pump when coming on ablation - ANSWER -increases
flow (8-30 ml/min)
Never do what with cryoballoon - ANSWER -never pull balloon sheath
of catheter, only pull it back onto shaft / dont pull back while frozen
