Correct Answer: D

Rationale: The correct answer is D because implementing Level II through Level IV CSH operations is not a major duty of the M6 practical nurse. A practical nurse's major duties include performing preventive, therapeutic, and emergency nursing care procedures (Choice A), managing other paraprofessional personnel (Choice B), and managing ward or unit operations (Choice C). These duties are more aligned with the responsibilities of a practical nurse, emphasizing patient care and coordination within a healthcare setting.

Correct Answer: C

Rationale: The correct answer is C: The adrenal medulla. Norepinephrine is secreted by the adrenal medulla and is involved in the body's 'fight or flight' response. The pancreas (choice A) secretes insulin and glucagon, not norepinephrine. The adrenal cortex (choice B) secretes hormones like cortisol and aldosterone, but not norepinephrine. The anterior pituitary gland (choice D) secretes various hormones like growth hormone and thyroid-stimulating hormone, but not norepinephrine.

Correct Answer: A

Rationale: The position that best shows chest expansion as well as its movements is when the client is sitting. When the client is seated, their chest is in an optimal position for observing the full range of chest expansion during breathing. This position allows for easy visualization of chest movements and expansion as the client breathes in and out, providing a comprehensive assessment of respiratory function. Choice B (Prone) and Choice D (Supine) involve positions where the chest's movements and expansion are less visible and may not provide an accurate representation of respiratory function. Choice C (Sidelying) can also limit the visibility of chest expansion compared to the sitting position.

Correct Answer: C

Rationale: The correct answer is C. Neomycin can interfere with the absorption of fat-soluble vitamins such as vitamins A, D, E, and K. Choice A is incorrect because neomycin does not affect the absorption of iron, copper, and zinc. Choice B is incorrect as neomycin does not impact the absorption of protein and amino acids. Choice D is also incorrect as neomycin does not decrease the absorption of water-soluble vitamins like vitamin C and the B vitamins.

Correct Answer: C

Rationale: The correct answer is C: GH (General Hospital). General Hospitals have the principal mission of treating and rehabilitating patients who can return to duty within the theater evacuation policy. FSB (Forward Surgical Hospital), CSH (Combat Support Hospital), and FH (Field Hospital) do not focus on treating and rehabilitating patients for duty within the theater evacuation policy, making them incorrect choices.