CMC Technology & Digital Tools 2

Question 1

Which remote monitoring technology allows continuous ambulatory tracking of hemodynamic parameters in heart failure patients via an implanted pulmonary artery pressure sensor?

Accepted Answer

CardioMEMS HF System

Answer

The CardioMEMS HF System is an implanted wireless sensor that measures pulmonary artery pressure to guide heart failure management remotely.

Question 2

When a cardiac catheterization laboratory's hemodynamic monitoring system displays a damped arterial waveform, the FIRST troubleshooting step should be:

Accepted Answer

Flush the arterial line with heparinized saline

Answer

A damped waveform typically indicates a clot or air bubble at the catheter tip, so flushing the line is the appropriate first step.

Question 3

In cardiac MRI, the term 'late gadolinium enhancement' (LGE) refers to:

Accepted Answer

Myocardial fibrosis or scar tissue that retains contrast agent longer than normal tissue

Answer

LGE reflects areas where gadolinium is retained due to disrupted cell membranes or expanded extracellular space, indicating fibrosis or scar.

Question 4

A fractional flow reserve (FFR) value of 0.75 measured during coronary angiography indicates:

Accepted Answer

Hemodynamically significant stenosis warranting revascularization

Answer

An FFR ≤0.80 indicates hemodynamically significant ischemia; values ≤0.75 clearly indicate revascularization benefit.

Question 5

Which software algorithm used in modern ECG systems automatically measures the QT interval and flags prolongation?

Accepted Answer

Glasgow algorithm

Answer

The Glasgow algorithm is a widely used automated ECG interpretation system that measures intervals including QTc and flags abnormalities.

CMC - Cardiac Medicine Certification Practice Test

CMC - Cardiac Medicine Certification Practice Test

CMC Technology & Digital Tools 2