Stuff
Define MSR vs MTR and chamber applied to
Max Sensor Rate = A-pacing
Max Tracking Rate = V-pacing
Shape of a normal histogram
Stair step or 1/2 bell curve
Name the 3 programmable parameters for sensors
Sensor Threshold, Slope, Reaction & Recovery Time
Rocking Chair
This is what CLS measures to determine rate response
Impedance via myocardial inotropy/contractility
Abbott Aveir leadless pacemaker uses what type of rate response sensor?
Temperature Sensor
Poor histogram shape
"Blunted" or minimal variation
Your pt's heart races when walking their cat short distances on a leash. Yeah, that guy. Of course, cats walk slow. What is wrong and what parameter needs to be changed?
Decrease slope
Name an exercise that limits an accelerometer but will not limit MV
Stationary Bike
Indication CLS is uniquely qualified for
Vasovagal syncope
Name 2 (of 3) common preliminary devices to diagnose CI
Holter monitor, Mobile Cardiac Telemetry, Loop Recorder
Permanent/chronic Afib histogram shape
Blunted shape with rates in the far right bin
Pt feels like their heart is racing while gardening. What needs to be changed?
Raise the sensor threshold (inc the fence)
What ailment/sickness/disfunction will not work with MV?
COPD or other pulmonary disease
What is one sensor parameter that CLS does not have (unlike accelerometers or MV)
Slope
Define the difference between dual sensor and blended sensor. Which company has a dual sensor and which has a blended sensor?
Blended means they must work together. Dual means they work autonomously.
BSX - blended
BIO - dual
Slope is too aggressive. What the shape?
Secondary or shifted peak
Your right-handed pt with a right-sided implant loves playing allegro (fast) death metal while sitting down. Their sensor driven rate inappropriately climbs too high. They are not signing, just playing chords. What type of sensor is being fooled?
Accelerometer
Your patient is in the ICU and intubated. For programming MV, you should __________________.
Turn it off
Accelerometers & MV can be fooled. This is how you can fool CLS.
You can't
AV synchrony contributes __ - __% of CO
20-30%
Slope setting is too low; not aggressive enough. What's the shape?
Normal shape but minimal rate dispersion beyond LRL
Pt says their slow heart rate causes light-headedness during the first couple of minutes of any exercise. What needs to be change?
Reaction Time too long
MV is composed of what two components?
Respiration Rate & Tidal Volume
Part of the cardiac cycle that CLS measures
Late Diastole