Correct Answer: E

Rationale: The correct answer is not provided in the choices. However, if I were to choose from the given options, the most appropriate would be C: "Because they are prone to reduced renal efficiency." This is important because older adults may have decreased kidney function, leading to potential complications with IV therapy. Option A is incorrect as defense mechanisms are not directly related to monitoring IV therapy. Option B is incorrect as fluid overload is a general concern with IV therapy regardless of age. Option D is irrelevant to the need for monitoring IV therapy in older adults.

Correct Answer: A

Rationale: The correct answer is A: Administering an oral dose of levothyroxine (Synthroid). In myxedema coma, there is severe hypothyroidism leading to altered mental status, hypothermia, and organ failure. Administering levothyroxine is crucial to replace the deficient thyroid hormone rapidly and restore metabolic function. Warming the client (B) is important but secondary to addressing the underlying hormonal imbalance. Measuring intake and output (C) is essential for overall assessment but not the most critical intervention. Maintaining a patent airway (D) is always important in any medical emergency but does not directly address the primary issue of hypothyroidism in myxedema coma.

Correct Answer: A

Rationale: The correct answer is A: Surgery. Surgery is the primary treatment for vaginal cancer, especially for early-stage cases. It involves removing the cancerous tissue from the vagina. Radiation (B) and chemotherapy (C) may also be used in addition to surgery in some cases, but they are not the primary treatment. Immunotherapy (D) is not a standard treatment for vaginal cancer. It is important to prioritize surgery as it directly targets and removes the cancerous cells from the affected area, increasing the chances of successful treatment and recovery.

Correct Answer: C

Rationale: The correct answer is C: Turn frequently every 2 hours. This is because changing positions regularly helps to relieve pressure on specific areas, reducing the risk of developing decubitus ulcers. Turning every 2 hours helps to maintain blood flow and prevent tissue damage. A: Massaging reddened areas with lotion or oils can actually cause further damage by increasing friction and pressure on the skin. B: While using a special water mattress can help distribute pressure more evenly, it is not as effective as regular turning to prevent decubitus ulcers. D: Keeping the skin clean and dry is important for overall skin health but alone is not sufficient to prevent decubitus ulcers. Regular repositioning is crucial in reducing pressure and avoiding tissue breakdown.

Correct Answer: D

Rationale: The correct answer is D because pupil size is not typically a part of a routine neurological examination. A: Eye movements are assessed to evaluate cranial nerve functions. B: Reflexes help determine the integrity of the spinal cord and peripheral nervous system. C: Nuchal rigidity is important to assess for signs of meningitis or other neurological conditions. In contrast, pupil size is more relevant in ophthalmological examinations or when assessing response to specific medications affecting the pupil size.