The nurse has received an order for mexiletine (Mexitil) for a patient with severe diabetes who is experiencing dysrhythmias. This drug helps alleviate discomfort from peripheral neuropathy; however, its principal indication is use as a(n)
a. dysrhythmic agent for symptomatic ventricular dysrhythmias.
b. dysrhythmic agent to prolong the QT interval.
c. agent to counter the adverse effects of other dysrhythmic drugs.
d. adjunct to digoxin (Lanoxin) to prevent ischemia.
A
The principal indications for mexiletine (Mexitil) are ventricular premature beats (VPBs) and sustained ventricular tachycardia.
Mexiletine does not prolong the QT interval.
Mexiletine is not effective against the adverse effects of other dysrhythmic drugs.
Mexiletine is not used as an adjunct to digoxin for the management of ischemia.
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The nurse is explaining how to a client how fluid and electrolytes get from one body compartment to another. Characteristics of transport mechanisms include:
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