Your client has anaphylaxis listed as a penicillin allergy. Which antibiotic would be safe for your client to receive?
cephalexin (Keflex).
cefaclor (Ceclor).
piperacillin/tazobactam (Zosyn).
levofloxacin (Levaquin).
The Correct Answer is D
Levofloxacin (Levaquin) is a fluoroquinolone antibiotic that is not structurally related to penicillin and has a very low risk of cross-reactivity with penicillin.

Levofloxacin can be safely used in patients with penicillin allergy unless they have a history of hypersensitivity to other fluoroquinolones.
Choice A is wrong because cephalexin (Keflex) is a first-generation cephalosporin that has a similar side chain to some penicillins and may cause cross-reactivity in penicillin-allergic patients. The risk of cross-reactivity is higher for first- and second-generation cephalosporins than for third- and fourth-generation cephalosporins.
Choice B is wrong because cefaclor (Ceclor) is a second-generation cep
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Insulin regular (Humulin-R) is the only form of insulin that is safe for intravenous administration. This is because it is a short-acting insulin that has a rapid onset and peak time, and does not contain any additives or suspensions that could interfere with the infusion.
Choice A is wrong because insulin aspart (Novo Log) is a rapid-acting insulin that is usually taken right before a meal. It is not suitable for intravenous use because it has a different amino acid sequence than human insulin.
Choice B is wrong because insulin glargine (Lantus) is a long-acting insulin that covers insulin needs for about a full day. It is not suitable for intravenous use because it forms micro-precipitates under the skin that release insulin slowly and steadily.
Choice C is wrong because insulin lispro (Humalog) is a rapid-acting insulin that is usually taken right before a meal. It is not suitable for intravenous use because it has a different amino acid sequence than human insulin.
Correct Answer is B
Explanation
This is the appropriate action because it prevents the spread of infection and maintains a clean environment.
The nurse should also wear gloves and dispose of the bag properly.
Choice A is wrong because saturating the dressing with saline before removing it can cause maceration of the skin and increase the risk of infection. The dressing should be removed gently and carefully, and if it is adhered to the wound, small amounts of sterile saline can be used to loosen it.
Choice C is wrong because using the old dressing to debride any tissue that is adhered to the wound can cause trauma, bleeding, and pain. The nurse should use sterile forceps or cotton- tipped applicators to gently press moistened gauze into the wound surfaces.
Choice D is wrong because reinserting the drain if removed with the dressing can cause injury and infection. The nurse should notify the surgeon immediately if the drain is accidentally removed.
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