Correct Answer: A

Rationale: Corrected deep tendon reflexes occur with hyponatremia. Other manifestations of hyponatremia include headache, confusion, lethargy, fatigue, seizures, and muscle weakness. Positive Chvostek's sign is associated with hypocalcemia, hyperactive bowel sounds are not typically related to hyponatremia, and dry mucous membranes are more commonly seen with dehydration.

Correct Answer: C

Rationale: The correct answer is C. The nurse should prioritize airway and breathing in a client with a traumatic brain injury. An increased respiratory rate may indicate CO2 retention, which could lead to increased intracranial pressure. Choice A, axillary temperature 37.2°C (99°F), is within normal range and does not indicate an immediate need for intervention. Choice B, apical pulse 100/min, is slightly elevated but not as critical as respiratory distress in this scenario. Choice D, blood pressure 140/84 mm Hg, is also within normal limits and does not require immediate intervention compared to the respiratory rate.

Correct Answer: D

Rationale: The correct intervention for a client with MĩniĬre's disease experiencing vertigo is to provide a low sodium diet. This helps reduce fluid retention, which can alleviate the symptoms of MĩniĬre's disease. Maintaining strict bed rest is not necessary and can lead to deconditioning. Restricting fluid intake to the morning hours does not specifically address the underlying cause of MĩniĬre's disease. Administering aspirin is not indicated for MĩniĬre's disease and can potentially worsen symptoms.

Correct Answer: C

Rationale: The correct answer is C because a CPAP device delivers a preset amount of positive airway pressure continuously throughout all inspiration and expiration cycles. Choice A is incorrect because CPAP does not deliver inspiratory pressure at the beginning of each breath; it provides continuous positive pressure. Choice B is incorrect because CPAP typically delivers a constant pressure rather than having a feature that changes pressure throughout the cycle. Choice D is incorrect as CPAP does not deliver positive pressure specifically at the end of each breath; it maintains a consistent pressure throughout the breathing cycle.

Correct Answer: B

Rationale: A positive Kernig's sign is identified when a client is unable to extend their leg completely without pain after hip flexion. This finding suggests meningeal irritation. Choices A, C, and D do not describe Kernig's sign. Choice A describes a normal plantar reflex, Choice C refers to coordination deficits, and Choice D indicates neck pain and stiffness, which are not related to Kernig's sign.