Cardiac Arrest Controversies Part 2 – Exam Questions and Answers
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Course
Cardiac Arrest
Institution
Cardiac Arrest
How does the impedance threshold device (ITD)work?
a.) Creates a negative pressure in the chest cavity
b.) Creates a positive pressure in the chest cavity
c.) Removes the need for intubation
d.) Provides positive pressure ventilations - Answer-Creates a negative pressure in the chest cavity - T...
Cardiac Arrest Controversies Part 2 –
Exam Questions and Answers
How does the impedance threshold device (ITD)work?
a.) Creates a negative pressure in the chest cavity
b.) Creates a positive pressure in the chest cavity
c.) Removes the need for intubation
d.) Provides positive pressure ventilations - Answer-Creates a negative pressure in the
chest cavity - The Res QPOD ITD lowers intrathoracic pressure during the recoil phase
of CPR by selectively restricting unnecessary airflow into the chest. This vacuum
increases preload, lowers intracranial pressure (ICP), and improves blood flow to the
brain and vital organs.
How do active compression-decompression (ACD) CPR devices function?
a.) Depresses the chest with a mechanical device (WRONG)
b.) Squeezes the sides of the patient to increase the chest volume capacity
c.) The provider uses a foot pedal to provide compressions with a machine
d.) Expands the chest by pulling up on the chest - Answer-Expands the chest by pulling
up on the chest - decompression CPR (ACD CPR) enhances the intrathoracic vacuum
(negative pressure) during chest wall recoil, resulting in more blood being returned to
the heart (preload). Enhanced preload leads to increased cardiac output on the
subsequent chest compression.
What is a benefit of mechanical CPR Devices?
a.) Transforms the cardiac arrest into a calmer mechanized event.
b.) Allows the paramedic to complete the patient care record before transport.
c.) Removes the need for ventilations.
d.) Can be used on small children. - Answer-Transforms the cardiac arrest into a calmer
mechanized event
How are IOs beneficial in cardiac arrest patients?
a.) There are no benefits to IOs
b.) They are generally easier to do than an IV
c.) They can deliver fluids at a more rapid rate (WRONG)
d.) IOs in the lower leg can deliver the medication faster - Answer-IOs in the lower leg
can deliver the medication faster
How does epinephrine function in cardiac arrest?
a.) It increases cardiac contractility and cerebral vascular resistance
b.) It decreases cardiac perfusion pressure and provides a better chance for cerebral
circulation
c.) It causes peripheral vasal constriction, increased coronary perfusion pressure and
increases blood flow to the heart
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