Technology & Digital Tools Flashcards
7 cards from real CMC practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Technology & Digital Tools flashcards as text
Which remote monitoring technology allows continuous ambulatory tracking of hemodynamic parameters in heart failure patients via an implanted pulmonary artery pressure sensor?
Answer: CardioMEMS HF System
The CardioMEMS HF System is an implanted wireless sensor that measures pulmonary artery pressure to guide heart failure management remotely.
When a cardiac catheterization laboratory's hemodynamic monitoring system displays a damped arterial waveform, the FIRST troubleshooting step should be:
Answer: Flush the arterial line with heparinized saline
A damped waveform typically indicates a clot or air bubble at the catheter tip, so flushing the line is the appropriate first step.
In cardiac MRI, the term 'late gadolinium enhancement' (LGE) refers to:
Answer: Myocardial fibrosis or scar tissue that retains contrast agent longer than normal tissue
LGE reflects areas where gadolinium is retained due to disrupted cell membranes or expanded extracellular space, indicating fibrosis or scar.
A fractional flow reserve (FFR) value of 0.75 measured during coronary angiography indicates:
Answer: Hemodynamically significant stenosis warranting revascularization
An FFR ≤0.80 indicates hemodynamically significant ischemia; values ≤0.75 clearly indicate revascularization benefit.
Which software algorithm used in modern ECG systems automatically measures the QT interval and flags prolongation?
Answer: Glasgow algorithm
The Glasgow algorithm is a widely used automated ECG interpretation system that measures intervals including QTc and flags abnormalities.
In electrophysiology, a 3D electroanatomic mapping system creates a cardiac chamber map using:
Answer: Magnetic field sensors in the catheter tip correlated with fluoroscopic position
Systems like CARTO use magnetic field-based localization of catheter tip sensors to construct real-time 3D maps of cardiac chambers.
Which technology is used in transcatheter aortic valve replacement (TAVR) planning to calculate annulus dimensions and optimal fluoroscopic angles?
Answer: CT angiography with dedicated TAVR planning software
CT angiography with specialized planning software (e.g., 3Mensio, Vida) provides precise annulus sizing, calcium scoring, and coplanar angle calculation for TAVR.