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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.

Answer and Explanation

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 C

Explanation

Choice A rationale

Headaches and blurred vision are not specific to stage I Lyme disease. These symptoms can occur in many other conditions and are not the primary indicators of early Lyme disease.

Choice B rationale

Tremors and weakness are not typical early signs of Lyme disease. These symptoms are more associated with neurological involvement, which occurs in later stages of the disease.

Choice C rationale

Rash symptoms, specifically erythema migrans (a bull’s-eye rash), are the hallmark of stage I Lyme disease. This rash appears at the site of the tick bite and is a key diagnostic feature.

Choice D rationale

Painful joints are more commonly seen in later stages of Lyme disease when the infection has spread and caused more systemic involvement.

A. A phlebotomist who collects blood from clients who have HIV. B. A nurse who works for an insurance company and collects urine samples from clients who have HIV. C. An occupational therapist who works with a client who has HIV. D. A personal trainer who works with a client who has HIV.

Correct Answer is A

Explanation

Choice A rationale

A phlebotomist who collects blood from clients who have HIV is at the greatest risk for contracting HIV. This is because they are frequently exposed to blood, which is a bodily fluid that can transmit HIV if proper precautions are not taken.

Choice B rationale

A nurse who works for an insurance company and collects urine samples from clients who have HIV is at a lower risk compared to a phlebotomist. Urine is not a common transmission route for HIV.

Choice C rationale

An occupational therapist who works with a client who has HIV is at a lower risk compared to a phlebotomist. Occupational therapists are not typically exposed to blood or other high-risk bodily fluids.

Choice D rationale

A personal trainer who works with a client who has HIV is at a lower risk compared to a phlebotomist. Personal trainers are not typically exposed to blood or other high-risk bodily fluids.

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What is the purpose of administering diphenhydramine before a blood transfusion?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A client calls the health care clinic and asks the nurse to describe the first signs of Lyme disease. The nurse informs the client to watch for which signs/symptoms of stage I Lyme disease?

Correct Answer is C

Explanation

A group of nurses are discussing risk factors for transmission of human immunodeficiency virus (HIV) from clients. Which of the following individuals should the nurse identify as being at the greatest risk for contracting HIV?

Correct Answer is A

Explanation

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