Correct Answer: C

Rationale: The correct answer is C: Increased risk of respiratory complications. Clients with myasthenia gravis, Guillain-Barre Syndrome, or amyotrophic lateral sclerosis all experience muscle weakness, including respiratory muscles, leading to a higher risk of respiratory complications such as difficulty breathing or respiratory failure. This is due to the involvement of the neuromuscular system in these conditions. Choices A, B, and D are incorrect because they do not directly correlate with the respiratory complications commonly seen in these specific neuromuscular disorders.

Correct Answer: D

Rationale: The correct answer is D because polyuria is a common complication of hypophysectomy, the surgical removal of the pituitary gland. The pituitary gland plays a crucial role in regulating water balance in the body, and its removal can lead to excessive urine production. Choices A, B, and C are incorrect because a decrease in stress does not typically cause polyuria, diabetes mellitus is not an immediate complication of surgery, and polyuria is not an expected result of pituitary gland removal.

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: B

Rationale: The correct answer is B: To prevent cerebrospinal fluid (CSF) leakage. Rationale: During a spinal block, the anesthesiologist injects anesthesia into the subarachnoid space, which contains CSF. Proper positioning ensures that the anesthesia stays in place and prevents leakage of CSF, which could lead to complications such as post-dural puncture headache. Incorrect choices: A: To prevent confusion - Irrelevant to the procedure. C: To prevent seizures leakage - Seizures are not a concern with spinal blocks. D: To prevent cardiac arrhythmias - Cardiac arrhythmias are not directly related to spinal blocks.

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.