The nurse is admitting a client to the acute care floor. While obtaining the history, the client tells the nurse she is allergic to penicillin. Which medication, if ordered by the physician, would be safe for this client?
1. Cefaclor (Ceclor)
2. Erythromycin (E-Mycin)
3. Cefdinier (Omnicef)
4. Cephalexin (Keflex)
Correct Answer: 2
Rationale 1: Cefaclor (Ceclor) is incorrect. Cephalexin, cefaclor, and cefdinier are all cephalosporins.
Rationale 2: Some clients (5-10 percent) who are allergic to penicillin will also be allergic to cephalosporins. Cephalexin, cefaclor, and cefdinier are all cephalosporins.
Rationale 3: Cefdinier (Omnicef) is incorrect. Cephalexin, cefaclor, and cefdinier are all cephalosporins.
Rationale 4: Cephalexin (Keflex) is incorrect. Cephalexin, cefaclor, and cefdinier are all cephalosporins.
Global Rationale: Erythromycin is the only safe medication from those listed. Some clients (5—10 percent) who are allergic to penicillin will also be allergic to cephalosporins. Cephalexin, cefaclor, and cefdinier are all cephalosporins.
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