LV Test 2

In a dual chamber pacemaker programmed DDD, hysteresis rate is activated by an intrinsic ventricular signle

False

According to the NBG code, what does the second letter in a device mode represent?

Chamber(s) sensed

Select the algorithm that promotes intrinsic ventricular signals to reduce RV pacing in a dual chamber pacemaker

VIP

Which of the following modes is going to asynchronous pace?

AOO

Which of the following patients would potentially be programmed AAI?

A young man with sick sinus syndrome and good AV conduction

A patient presents in clinic with complaints that their heart starts racing with minimal activity, making them uncomfortable. What change might you make to their rate response?

Increase threshold

What does the device use to calculate the sensor indicated rate?

Slope

A patient is asleep and in normal sinus rhythm. What rate are they pacing at?

Their device settings are:

Base rate: 60bpm. Rest rate: 50bpm. AMS base rate: 80bpm

50bpm

True or False: Negative AV hysteresis should be programmed ON for patients with neurocardiogenic syncope

False

Select the algorithm that automatically adjusts the AV delay to optimize electrical synchrony and promote more ventricular activation in a dual chamber pacemaker

SyncAV

Which of the following patients would most likely be programmed DDD?

A woman with first-degree heart block who requires maintenance of AV Synchrony

A PT with complete AV block has a dual chamber pacemaker programmed DDD. During exercise their sinus rate increases to 145 bpm, but the ventricular paced rate never exceeds 130 bpm despite the atrial sensing. What programming change would best address this issue?

Increase max track rate

A patient with rate response enabled reports that their rate increases during activity, but it rises too slowly and they become short of breath before reaching an appropriate rate. Which programming change would most likely improve their symptoms?

Increase slope

A magnet is placed over a new Abbott pacemaker with a full battery. What rate will it pace at?

Programmed settings:

DDD. Base rate: 60bpm, Hysteresis rate: 50bpm. AMS Base rate: 90bpm

100

A patient presents with an RV lead impedance that went from 600 ohms to >2,000 ohms. What might this indicate?

Lead fracture

True or False: Lead polarity switches can only occur from Unipolar to Bipolar

False

How is TARP calculated?

SAV+PVARP

What happens when a patient’s atrial rate exceeds their MTR, not their 2:1 block point?

Pacemaker Wenckebach

True or False: Rate responsive AV delay should increase a patient’s PR interval as their sinus rate increases

False

A pacemaker is programmed DDD, with a base rate of 60bpm. What mode will the device pace when a magnet is placed over it?

DOO

For a device to exit an AMS episode, which of the following is true?

FARI (bpm) < MTR

True or False: In order for AFX (AF Suppression) to overdrive pace the atrium, the device must see 3 AS events within a 16-cycle window.

False

True or False: AFX (AF Suppression) TREATS atrial fibrillation

False

What modes can PMT occur

VDD

Which of the following algorithms treat PMT?

A Pace on PMT

Why might an ICM be implanted for a cryptogenic stroke patient?

To check for afib that may have caused the stroke

Which of the following statements are TRUE about Assert ICMs?

The header has a dual sided electrode

True or False: For an ICM, adjusting the EGM gain to 100 mm/mV helps easily calculate the predicted R-Wave amplitudes.

True

Implanting an Assert IQ in a PARASTERNAL position will typically show better P-waves?

True

Which Abbott ICM device has a battery longevity of 6 years?

Assert IQ EL+ (DM5500)

Why would an ICM be implanted instead of patients receiving an external monitor

Symptoms may be infrequent enough to require long term monitoring

True or False: During a case, anything blue is considered not-sterile and OK to touch if you are not scrubbed in

False

Which of the following posture changes would an Assert IQ ICM consider “unsteady”?

Reclining to laying down

What does the Assert IQ ICM verify before declaring a pause detection?

If R-waves are undersensed/Loss of contact

True or False: Making note of the time an episode occurred is NOT important when reviewing brady episodes on an ICM

False

When discriminating for AF, what does an Assert IQ ICM NOT check for?

T-waves

What qualifier is NOT part of the Tachycardia detection for Assert IQ ICM?

P-wave morphology

True or False: the Assert IQ ICM can detect singlets, couplets, and triplet PVCs

True

Which of the following would you adjust to fix double counting of R-Waves on an ICM?

Sense Refractory

True or False: SyncUp can be used for Patients with Abbott ICMs

True

True or False: Merlin On Demand can be used for patients with Assert IQ ICMs

False

Promotes intrinsic activity by temporarily reducing the pacing rate after a sensed beat, minimizing unnecessary pacing while maintaining backup support.

Hysteresis

promotes intrinsic activity by periodically extending the escape interval to asses for native rhythm recovery, reducing unnecessary pacing while maintaining back up support

Hysteresis with search

Periodically adjusts the AV delay to reassess intrinsic AV conduction and minimize unnecessary RV pacing while ensuring consistent ventricular support when native conduction is inadequate.

Negative AV Hysteresis with Search

A rate-drop response algorithm that detects abrupt bradycardia and temporarily increases the pacing rate to prevent symptoms such as dizziness or syncope, then returns to baseline pacing once the episode resolves

Advanced Hysteresis

Promotes intrinsic AV conduction by extending the AV delay and minimizing unnecessary RV pacing, while still providing reliable ventricular support when native conduction is absent.

VIP

Optimizes sensing by improving detection of low-amplitude intrinsic signals while maintaining protection against oversensing, allowing for more individual and reliable atrial and ventricular settings.

SenseAbility

Dynamically adjusts the AV delay to optimize AV synchrony and promote more physiologic ventricular activation by leveraging the patients intrinsic conduction whenever possible.

SyncAV

Uses dynamic atrial overdrive pacing to suppress atrial premature beats and reduce the likelihood of atrial fibrillation initiation while preserving normal device function.

AF Suppression

Designed to prevent rapid ventricular pacing during atrial tachyarrhythmias by detecting sustained high atrial rates and automatically switches from tracking mode to a non-tracking mode.

AMS

Designed to identify and fix reentrant tachycardias caused by retrograde ventricular conduction. When the device sees this it temporarily extends the PVARP to block retrograde atrial sensing, interrupting the reentry loop.

PMT Detection/Termination

Continuously monitors myocardial capture and automatically adjusts pacing output to maintain reliable capture while optimizing battery longevity

AutoCapture

Designed to prevent inappropriate inhibition of ventricular pacing caused by ventricular sensing of a non-ventricular event, such as atrial pacing or crosstalk.

VSP

Provides support by adjusting the pacing rate in response to changes in a patient’s activity level when intrinsic sinus node function is inadequate.

Rate Response