IBHRE CEPS TROUBLE QUESTIONS FINAL PAPER
2026 COMPLETE ANSWERS VERIFIED
◉ Stereotaxis catheters. Answer: Have magnets in tip for
maneuverability in response to changes in magnetic field
◉ What system remotely steers guided catheters. Answer: Hansen
robotic system
◉ 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
2026 COMPLETE ANSWERS VERIFIED
◉ Stereotaxis catheters. Answer: Have magnets in tip for
maneuverability in response to changes in magnetic field
◉ What system remotely steers guided catheters. Answer: Hansen
robotic system
◉ 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
