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 ["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.
Correct Answer is A
Explanation
Choice A rationale
Applying the ointment in a thin line into the conjunctival sac ensures that the medication is properly distributed across the surface of the eye, allowing for effective treatment of the bacterial conjunctivitis.
Choice B rationale
Asking the child to look down before applying the ointment is not necessary and may make the application process more difficult. The focus should be on ensuring the ointment is applied correctly.
Choice C rationale
Using a sterile glove and applicator is not required for applying ophthalmic ointment. Clean hands and proper technique are sufficient to ensure safe and effective application.
Choice D rationale
Wiping from the outer to the inner canthus is incorrect. The correct technique is to wipe from the inner to the outer canthus to prevent the spread of infection.