Correct Answer: B

Rationale: The correct hand position for performing chest vibration is to spread the fingers. This allows for a larger surface area of contact with the chest, promoting effective transmission of vibrations to loosen chest secretions. Flattening the hands would reduce the effectiveness of the vibrations by limiting contact area. Cupping the hands creates a smaller contact area and may concentrate the pressure too much in one spot, potentially causing discomfort or injury. Therefore, spreading the fingers is the optimal hand position for chest vibration technique.

Correct Answer: B

Rationale: The correct answer is B, removing the client from the cold environment. This is because hypothermia occurs when the body loses heat faster than it can produce it, and being in a cold environment exacerbates this process. By removing the client from the cold environment, the nurse helps stop further heat loss. Warming the client slowly (A) can be detrimental as rapid rewarming can lead to complications. Providing a warm environment (C) and applying warm blankets (D) are important interventions but should come after removing the client from the cold environment to prevent further heat loss.

Correct Answer: A

Rationale: The correct answer is A: Administer glucose. Hypoglycemia is low blood sugar, and administering glucose rapidly raises blood sugar levels to restore normal function. Glucagon (choice B) is used for severe hypoglycemia when the individual cannot consume oral glucose. Insulin (choice C) lowers blood sugar levels and is contraindicated in hypoglycemia. Corticosteroids (choice D) can worsen hypoglycemia by affecting glucose metabolism. Administering glucose is the most direct and effective intervention for hypoglycemia.

Correct Answer: D

Rationale: The correct answer is D: Encourage deep breathing. This is because encouraging deep breathing can help alleviate anxiety and promote relaxation, which can be beneficial in managing severe chest pain. Administering nitroglycerin (A) should only be done after assessing the client's condition and confirming it is safe to do so. Providing pain relief (B) may be necessary, but addressing the root cause of the pain should be the priority. Monitoring ECG (C) is important but should come after ensuring the client's immediate needs are addressed.

Correct Answer: D

Rationale: The correct answer is D: cirrhosis. Cirrhosis leads to impaired liver function, causing the liver to be unable to effectively metabolize ammonia, leading to high ammonia levels in the blood. Renal failure (choice A) is associated with high creatinine levels, not ammonia. Psoriasis (choice B) is a skin condition unrelated to ammonia levels. Lupus (choice C) is an autoimmune disease affecting various organs, not directly linked to high ammonia levels. In summary, cirrhosis is the only condition among the options that directly impacts liver function and can lead to high ammonia levels in the blood.