What Are the Indications for Using a Power Injector During

question 18

Multiple Choice

What are the indications for using a power injector during an interventional radiology vascular procedure?

• A) To propel contrast agents and also emergency drugs into the arterial system
• B) To ensure precise timing and rate of injection of contrast media
• C) To provide torque to guide the catheter through stenosed vessels
• D) To decrease the procedure and radiation exposure time for the patient

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Definitions:

Voltage-activated Calcium Ion Channels

Ion channels in cell membranes that open in response to changes in electrical potential, allowing calcium ions to enter the cell.

Presynaptic Membrane

Axon terminal membrane on the transmitter, or output, side of a synapse.

Neurotransmission

The process by which neurotransmitters are released by a neuron, cross the synaptic gap, and bind to receptors on another neuron, resulting in the transmission of a nerve impulse.

Axosecretory Synapses

Specialized synapses where an axon terminal secretes neurotransmitters directly into the bloodstream.