Prior to the administration of penicillin, a nurse reviews medication literature regarding precautions associated with penicillin. For which patient would the nurse most likely consider these precautions warranted?
a. A patient who has a history of anaphylaxis from promethazine (Phenergan)
b. A patient who has a history of bronchitis and asthma
c. A patient who reports an allergy to sulfa-based agents
d. A patient who reports a history of a mild rash from penicillin taken 7 years ago
ANS: D
Even a minor allergy to penicillin warrants precautions during administration, because a more severe allergic reaction may occur.
Promethazine is not related to penicillin, therefore no precautions are necessary.
A history of bronchitis and asthma would not be prohibiting factors preventing the use penicillin.
A patient who has a known allergy to sulfa-based drugs does not have a cross-sensitivity to penicillin drugs, therefore no precautions are necessary.
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