A client with a history of anaphylactic reaction to penicillin receives a prescription for cephalexin 500 mg PO twice daily. Which action should the nurse take?
Contact the healthcare provider.
Give with prescribed antihistamine.
Administer the medication as prescribed.
Monitor the client for a rash or hives.
The Correct Answer is A
Choice A Reason:
Contact the healthcare provider: Given the client’s history of anaphylactic reaction to penicillin, there is a potential risk of cross-reactivity with cephalexin, a cephalosporin. Although the risk of cross-reactivity is relatively low, it is still significant enough to warrant caution. Studies indicate that 1-4% of people with a true penicillin allergy may also react to cephalosporins. Therefore, the nurse should contact the healthcare provider to discuss alternative antibiotics or additional precautions.
Choice B Reason:
Give with prescribed antihistamine: While antihistamines can help manage mild allergic reactions, they are not sufficient to prevent or treat anaphylaxis. Anaphylactic reactions require immediate medical intervention, including epinephrine administration. Therefore, relying solely on antihistamines is not an appropriate or safe action in this scenario.
Choice C Reason:
Administer the medication as prescribed: Administering cephalexin without consulting the healthcare provider could put the client at risk of a severe allergic reaction. Given the client’s history of anaphylaxis to penicillin, it is crucial to verify the safety of cephalexin with the healthcare provider before administration.
Choice D Reason:
Monitor the client for a rash or hives: While monitoring for allergic reactions is essential, it should not be the primary action in this case. The priority is to prevent a potential severe allergic reaction by consulting the healthcare provider before administering the medication. Monitoring alone does not address the underlying risk of cross-reactivity.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A Reason:
Spironolactone is a potassium-sparing diuretic often prescribed for heart failure. While monitoring for side effects is important, excessive bruising is not a common side effect of spironolactone. Bruising might be more relevant for patients on anticoagulants or those with clotting disorders.
Choice B Reason:
Replacing salt with a salt substitute is not advisable for patients on spironolactone. Many salt substitutes contain potassium chloride, which can lead to hyperkalemia (high potassium levels) when combined with spironolactone. Hyperkalemia can cause serious cardiac issues, including arrhythmias.
Choice C Reason:
Covering the skin before going outside is not specifically related to the use of spironolactone. This advice might be more relevant for medications that cause photosensitivity, such as certain antibiotics or diuretics like hydrochlorothiazide, but not spironolactone.
Choice D Reason:
Limiting the intake of foods high in potassium is crucial for patients taking spironolactone. Spironolactone can increase potassium levels in the blood, and consuming high-potassium foods (like bananas, oranges, and potatoes) can exacerbate this effect, leading to hyperkalemia. Hyperkalemia can be dangerous and cause symptoms such as muscle weakness, fatigue, and cardiac arrhythmias.

Correct Answer is B
Explanation
Choice A reason: Taking tamsulosin early in the day is not necessary. Tamsulosin should be taken approximately 30 minutes after the same meal each day to ensure consistent absorption and effectiveness1. The timing of the dose is less critical than ensuring it is taken after the same meal daily.
Choice B reason: Tamsulosin can cause orthostatic hypotension, which is a sudden drop in blood pressure when standing up from a sitting or lying position. This can lead to dizziness or fainting. Therefore, it is crucial to instruct patients to stand and sit up slowly to prevent falls and injuries.
Choice C reason: Reducing daily fluid intake is not recommended for patients taking tamsulosin. Adequate hydration is important for overall health and can help manage urinary symptoms associated with BPH. There is no evidence suggesting that fluid restriction improves the effectiveness of tamsulosin.
Choice D reason: Tamsulosin should be taken daily, not on a twice-a-week dosing schedule. Consistent daily dosing is necessary to maintain stable blood levels of the medication and ensure its effectiveness in managing urinary retention due to BPH.
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