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 ["B","D","F"]
Explanation
Choice A rationale
Avoiding the use of insect repellent on the skin and clothing is not recommended. Insect repellents containing DEET are effective in preventing tick bites, which can transmit Lyme disease. The toxicity of DEET is minimal when used as directed.
Choice B rationale
Avoiding heavily wooded areas and areas with thick underbrush is recommended to reduce the risk of tick exposure. Ticks that carry Lyme disease are commonly found in these environments.
Choice C rationale
Wearing dark clothing is not recommended as it makes it harder to spot ticks. Light-colored clothing is preferable as it allows for easier detection of ticks.
Choice D rationale
Wearing long-sleeved tops and long pants with closed shoes is recommended to minimize skin exposure and reduce the risk of tick bites.
Choice E rationale
Reporting to the primary health care provider immediately for a blood test if a tick is found is not necessary. The presence of a tick does not immediately indicate Lyme disease. Instead, the tick should be removed promptly, and the area should be monitored for signs of infection.
Choice F rationale
Bathing after being in an infested area and inspecting the body carefully for ticks is recommended. This helps in early detection and removal of ticks, reducing the risk of Lyme disease.