Term
| If the CI is T but Interval Avg says VS what will be displayed on the event markers and where will it be binned? |
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Definition
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Term
| Low Frequency Attenuation filter was designed to |
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Definition
| reduce T wave oversensing due to R wave diminishing |
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Term
| What is the spacing between the rings in the header of the DF-4? |
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Definition
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Term
| SensAbility has 5 programmable options. |
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Definition
| Threshold start, decay delay, max sensitivity, refractory, filter |
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Term
| In order for the device to continue to give Fib tx for a rhythm that redetects in the VT zone, the post fib detection interval must be programmed to: |
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Definition
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Term
| The study that did not require a positive EP study and showed a 31% reduction in All Cause Mortality in the ICD group was the: |
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Definition
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Term
| Which of the following is the most common mechanism for arrhythmias |
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Definition
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Term
| What are the 3 mechanisms for arrhythmias? |
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Definition
| reentry, triggered, automatic |
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Term
| The sensing mode in the atrium is programmable to either auto (senseability) or fixed |
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Definition
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Term
| What is the nominal threshold start value for a sensed R wave in a fortify device programmed w/other nominal senseability settings? |
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Definition
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Term
| In the Durata DF4 lead, what is the proper sequence from pin to rings that fit in the header |
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Definition
| RV pace pin, RV sense ring, RV HV, SVC HV |
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Term
| today's icds can differentiate hemodynamically stable vs unstable rhythms using bp and transthoracic impedances |
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Definition
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Term
| SJM devices require 12 of 18 VT binned intervals to make a VT diagnosis but only 12 F binned intervals to make a VF diagnosis |
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Definition
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Term
| SJM devices require a nominal of 12 tach or fib intervals combined to make a VT diagnosis- needs 12 of anything |
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Definition
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Term
| What are the following programmable options for overcoming T wave oversensing |
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Definition
| max sensitivity, decay delay, sense refractory, threshold start |
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Term
| if threshold start is programmed to 50% and the max measured R wave is 9 mv, where will sensitivity start? |
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Definition
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Term
| Nominal setting for sinus redetection |
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Definition
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Term
| bigeminal avoidance algorithm has been beneficial in reducing inappropriate therapy due to a bigeminal rhythm but also reducing: inappropriate VT diagnosis due to T wave oversensing of VS and VT |
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Definition
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Term
| A diagnosis of VT is made and the device has begun to charge. The charge time was only 2.5 seconds for a 10J shock. What must occur before the device delivers a shock? |
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Definition
| must synchronize and deliver the HV shock on a non sinus event, has not met RS criteria, must verify that 5 non-sinus intervals have occurred during the charging |
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Term
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Definition
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Term
| integrated bipolar lead uses the tip of the lead and what for sensing? |
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Definition
| distal shocking coil of the lead |
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Term
| true bipolar leads use the tip of the lead and what for sensing? |
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Definition
| ring electrode on the V lead |
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Term
| AA meds alter the shape of the action potential? |
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Definition
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Term
| DF4 is an international standard designation? |
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Definition
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Term
| An R wave is sensed at 5mv, threshold start is programmed to 100%. Where will the sensitivity start? |
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Definition
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Term
| According to studies, AA drugs are far superior to ICDs in decreasing mortality |
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Definition
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