The nurse identifies Injury, Risk for as a nursing diagnosis for a client beginning therapy with verapamil (Verelan) who takes carbamazepine (Tegretol) to manage a seizure disorder
because this drug combination can result in an increased risk of which disorder?
1. Seizures
2. Confusion
3. Ataxia
4. Hypotension
Correct Answer: 3
Rationale 1: The interaction of these drugs does not cause a decrease in serum concentration of carbamazepine (Tegretol), which could cause loss of seizure control.
Rationale 2: Altered mental status is not a consequence of a rise in serum carbamazepine (Tegretol) concentration.
Rationale 3: The interaction of these drugs causes an increase in serum concentration of carbamazepine (Tegretol) and could lead to falls associated with ataxia, which is an adverse effect of carbamazepine (Tegretol).
Rationale 4: An increase in serum concentration of verapamil (Verelan), which could cause hypotension, is not a consequence of the interaction of these drugs.
Global Rationale: The interaction of these drugs causes an increase in serum concentration of carbamazepine (Tegretol) and could lead to falls associated with ataxia, which is an adverse effect of carbamazepine (Tegretol). The interaction of these drugs does not cause a decrease in serum concentration of carbamazepine (Tegretol), which could cause loss of seizure control. Altered mental status is not a consequence of a rise in serum carbamazepine (Tegretol) concentration. An increase in serum concentration of verapamil (Verelan), which could cause hypotension, is not a consequence of the interaction of these drugs.
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