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 B
Explanation
This is because mitt restraints can reduce the patient’s mobility and circulation in the hands, and range of motion exercises can help prevent contractures, stiffness, and edema.
Choice A is wrong because removing the mitts when the client is asleep can increase the risk of self-injury or removal of therapeutic equipment.
Choice C is wrong because tying the restraints securely around the wrists and to the bed can impair the patient’s circulation and cause nerve damage.
Choice D is wrong because placing the restraints loosely to allow increased freedom of movement can cause entanglement or strangulation.
Correct Answer is D
Explanation
The question asks how many milligrams of the medication will be in 1 mL of D5W. To find this, we need to know the concentration of the medication in the solution.
Concentration is the amount of medication per unit volume of solution. We can use this formula:
Concentration = Mass / Volume
We know that 250 mg of the medication is diluted in 500 mL of D5W. So we can plug these values into the formula:
Concentration = 250 mg / 500 mL Simplifying, we get:
Concentration = 0.5 mg / mL
This means that there are 0.5 mg of the medication in every 1 mL of D5W. So the answer is
- To check our answer, we can use another formula:
Mass = Concentration x Volume
If we want to find the mass of the medication in 1 mL of D5W, we can multiply the concentration by the volume:
Mass = 0.5 mg / mL x 1 mL Simplifying, we get:
Mass = 0.5 mg
This matches our answer.
The other choices are wrong because they do not use the correct formula or values. Here is why:
Choice A is wrong because it uses the inverse of the concentration (1 / 0.5) instead of the concentration (0.5).
Choice B is wrong because it uses the mass of the medication (250 mg) instead of the concentration (0.5 mg / mL).
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