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

A.

To expand the blood volume.

B.

To enhance clotting factors.

C.

To avoid fever and chills.

D.

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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View Related questions

Correct Answer is C

Explanation

Choice A rationale

Drinking room temperature beverages can help minimize irritation in the mouth and throat, which is beneficial for clients with stomatitis. Cold or hot beverages can exacerbate the condition by causing discomfort and pain.

Choice B rationale

Taking a prescribed analgesic can help manage the pain associated with stomatitis. Pain management is crucial for maintaining the client’s comfort and ability to eat and drink.

Choice C rationale

Stomatitis is not contagious and cannot be spread to family members. This statement indicates a need for further teaching as it reflects a misunderstanding of the condition.

Choice D rationale

Chemotherapy can affect the immune system, making the client more susceptible to infections and conditions like stomatitis. This statement is accurate and does not indicate a need for further teaching.

Correct Answer is ["B","C","D","F"]

Explanation

Choice A rationale

Increased awareness is not a manifestation of anaphylactic shock. Anaphylactic shock typically causes confusion or loss of consciousness due to decreased blood flow to the brain.

Choice B rationale

Chest pain can occur during anaphylactic shock due to the body’s severe allergic reaction and the strain it places on the cardiovascular system.

Choice C rationale

Dyspnea, or difficulty breathing, is a common manifestation of anaphylactic shock. The airways can become constricted, making it hard to breathe.

Choice D rationale

Angioedema, or swelling of the deeper layers of the skin, often occurs during anaphylactic shock. It can affect the face, throat, and other areas.

Choice E rationale

Hypertension, or high blood pressure, is not a typical manifestation of anaphylactic shock. Anaphylactic shock usually causes hypotension, or low blood pressure.

Choice F rationale

Urticaria, or hives, is a common skin reaction during anaphylactic shock. It presents as red, itchy welts on the skin.

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