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HESI A2 PHARMACOLOGY (70 QUESTIONS AND ANSWERS) EXAM REVIEW
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. A healthcare provider prescribes cephalexin monohydrate (Keflex) for a client with a postoperative infection. It is most important for the nurse to assess for what additional drug allergy before administering this prescription? 
A)	Penicillins. 
B)	Aminoglycosides. 
C)	Erythromycins. 
D)	Sulfonamides. 
 
A) Penicillins. 
 
Cross-allergies exist between penicillins (A) and cephalosporins, such as cephalexin monohydrate (Keflex), so checking for penicillin allergy is a wise precaution before adm...