A Patient Will Receive Intrathecal Liposomal Cytarabine [DepoCyt] to Treat

question 18

Multiple Choice

A patient will receive intrathecal liposomal cytarabine [DepoCyt] to treat acute myelogenous leukemia. The provider has ordered the concurrent administration of dexamethasone. The nurse understands that this is given to:

• A) prevent bone marrow suppression.
• B) prevent hair loss and stomatitis.
• C) reduce the incidence of pulmonary edema.
• D) reduce the severity of chemical arachnoiditis.

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Definitions:

Absolute Threshold

The minimum intensity of a stimulus that one can perceive 50% of the time, marking the boundary between detectable and undetectable levels of sensory input.

Taste Constancy

The ability to perceive and recognize the taste of substances under varying conditions consistently.

Inhibitory Synapses

Junctions between neurons where the action of one neuron can decrease the likelihood of the second neuron firing an action potential, thus inhibiting its activity.

Action Potentials

Electrical impulses that transmit signals along neurons, essential for the functioning of nerves and muscles in the body.