What is the purpose of administering diphenhydramine before a blood transfusion?
To expand the blood volume.
To enhance clotting factors.
To avoid fever and chills.
To prevent urticaria.
The Correct Answer is D
Choice A rationale
Diphenhydramine does not expand blood volume. It is an antihistamine used to prevent allergic reactions.
Choice B rationale
Diphenhydramine does not enhance clotting factors. It is used to manage allergic reactions.
Choice C rationale
While diphenhydramine can help manage fever and chills, its primary purpose before a blood transfusion is to prevent allergic reactions.
Choice D rationale
Administering diphenhydramine before a blood transfusion helps prevent urticaria and other allergic reactions by blocking histamine release. .
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Correct Answer is A
Explanation
Choice A rationale
Multiple sexual partners increase the risk of human papillomavirus (HPV) infection, which is a significant risk factor for cervical cancer.
Choice B rationale
Multiple pregnancies are not a significant risk factor for cervical cancer.
Choice C rationale
Late onset of menarche is not a significant risk factor for cervical cancer.
Choice D rationale
Use of a diaphragm is not a significant risk factor for cervical cancer.
Correct Answer is A
Explanation
Choice A rationale
A CD4-T-cell count of 180 cells/mm³ indicates severe immunosuppression in a client with HIV, making them highly susceptible to opportunistic infections. This is a critical value that requires immediate attention to prevent life-threatening complications.
Choice B rationale
A positive Western blot test confirms the presence of HIV antibodies but does not indicate the current immune status or the urgency of the client’s condition.
Choice C rationale
Platelets at 150,000/mm³ are within the normal range and do not indicate an immediate threat to the client’s health.
Choice D rationale
A WBC count of 5,000/mm³ is within the normal range and does not indicate an immediate threat to the client’s health.