Correct Answer: D

Rationale: Autoimmunity is when the immune system mistakenly attacks the body's own cells. Choice D is correct because it reflects this key feature - the inability to differentiate self from nonself. This leads to the immune system targeting healthy tissues. Choices A, B, and C are incorrect as they do not accurately describe autoimmunity. Choice A refers to endotoxins destroying B cells, which is not the definition of autoimmunity. Choice B mentions overproduction of reagin antibody, which is not related to autoimmunity. Choice C is incorrect as autoimmunity does not involve depression of the immune response but rather an inappropriate immune response.

Correct Answer: A

Rationale: The correct answer is A: Ensure client safety. This is the nurse's primary legal responsibility as it aligns with the ethical principle of beneficence, prioritizing the well-being and safety of the client. Ensuring client safety is essential to prevent harm and promote positive health outcomes. Following physician orders precisely (B) is important but not the primary legal responsibility of the nurse. Documenting care comprehensively (C) is crucial for accountability and continuity of care but is not the primary legal responsibility. Providing client-centered education (D) is essential for empowering clients but is not the primary legal responsibility in terms of legal accountability and duty of care.

Correct Answer: A

Rationale: The correct answer is A. 1. Change in level of consciousness is crucial in assessing neurological status. 2. Tachypnea indicates possible respiratory distress or oxygenation issues. 3. Tachycardia may suggest a cardiovascular problem or inadequate perfusion. 4. Petechiae can be a sign of bleeding disorders or sepsis. Option B is incorrect because chest pain, diaphoresis, and nausea/vomiting are more indicative of a cardiac event rather than monitoring for J.E.'s signs and symptoms. Option C is incorrect because loss of consciousness, bradycardia, and leg pain do not align with the signs and symptoms to monitor for J.E. Option D is incorrect because bradycardia, chest pain, and oliguria are not as comprehensive as the signs and symptoms listed in option A for monitoring J.E.

Correct Answer: B

Rationale: The correct answer is B, a high protein, vitamin, and iron diet, as it directly addresses the nutritional deficiencies associated with anemia. Proteins aid in the production of red blood cells, while iron and vitamins are essential for hemoglobin synthesis. Medical therapy (A) typically involves medications or blood transfusions, not dietary changes. Fluid therapy (C) may be used for certain types of anemia, but it is not a primary intervention. Chemotherapy (D) is not indicated for the treatment of anemia, as it is used for cancer treatment. Therefore, choice B is the most appropriate intervention for anemia.

Correct Answer: C

Rationale: The correct answer is C (5 years) because ALS is a progressive and fatal neurodegenerative disease. The median life expectancy for most ALS patients is around 3-5 years from the onset of symptoms. Choice A (3 years) is too short for 50% of patients. Choice B (10 years) and Choice D (20 years) are longer than the typical life expectancy for ALS patients, making them incorrect. The progression of ALS varies among individuals, but statistically, 50% of patients would be expected to live around 5 years after diagnosis.