Which description of stool is characteristic of intussusception?

The correct answer is choice B. Epinephrine.

Choice A rationale:

Diphenhydramine. Diphenhydramine is an antihistamine commonly used to relieve allergic symptoms such as itching, rash, and runny nose. While it can be part of the treatment for anaphylactic reactions, it is not the medication of choice for immediate administration in the case of a severe anaphylactic reaction like the one described in the scenario.

Choice B rationale:

Epinephrine. Correct Answer. In cases of severe anaphylactic reactions, epinephrine (adrenaline) is the medication of choice for immediate administration. Epinephrine acts rapidly to reverse life-threatening symptoms, such as airway constriction, low blood pressure, and hives. It works by dilating airways, increasing heart rate, and improving blood pressure.

Choice C rationale:

Dopamine. Dopamine is a medication used to increase blood pressure and cardiac output in certain critical situations. However, it is not the first-line treatment for anaphylactic reactions. Epinephrine's effects on airway and cardiovascular function make it the preferred choice in this context.

Choice D rationale:

Calcium chloride. Calcium chloride is not the appropriate medication for treating anaphylactic reactions. Its main medical uses include treating hypocalcemia (low blood calcium levels) and certain cardiac arrhythmias. It does not address the primary symptoms and physiological changes associated with anaphylaxis.

The correct answers are choices B. Administer Benadryl, and D. Apply a cool compress.

Choice A rationale:

Placing an ace wrap on the bite is not recommended for a brown recluse spider bite. This action could potentially worsen the situation as it might trap venom in the area and increase the risk of necrosis.

Choice B rationale:

Administering Benadryl is a suitable action for alleviating pain and managing allergic reactions related to the bite. Benadryl (diphenhydramine) is an antihistamine that can help reduce itching and inflammation.

Choice C rationale:

Elevating the affected area might not provide significant pain relief for a brown recluse spider bite. Elevating is generally more effective for reducing swelling associated with injuries involving fluid accumulation, like sprains or strains.

Choice D rationale:

Applying a cool compress to the bite area can help alleviate pain and reduce inflammation. Cold therapy constricts blood vessels, which can reduce swelling and numb the area, providing relief.