Correct Answer: B

Rationale: The priority for a client with dehydration is to monitor electrolyte levels to prevent imbalances. Dehydration can lead to electrolyte disturbances, which can have serious consequences. Administering antiemetics (Choice A) may help with nausea but does not address the root cause of dehydration. Administering oral rehydration solutions (Choice C) can be beneficial, but monitoring electrolyte levels is crucial in managing dehydration. Administering intravenous fluids (Choice D) is important in severe cases of dehydration, but monitoring electrolytes should come first to assess the extent of the imbalance and guide fluid replacement therapy effectively.

Correct Answer: C

Rationale: The correct answer is C: 'Poor lighting.' External factors such as lighting can significantly impact the learning environment, making it difficult for participants to engage effectively. Poor lighting can strain the eyes, cause discomfort, and lead to decreased concentration. Choices A, B, and D are internal factors or issues that are not directly related to the learning environment. High workload, limited knowledge on the subject, and limited space in the learning area may affect learning differently but do not impede learning through external factors like poor lighting does.

Correct Answer: A

Rationale: The correct answer is A: Urine output of 20 mL/hr. A urine output less than 30 mL/hr can indicate decreased renal perfusion, potentially due to hypovolemia or other issues, and should be reported to the provider. B: A temperature of 36.5°C (97.7°F) falls within the normal range and does not require immediate reporting. C: Sanguineous drainage on the surgical dressing is expected in the early postoperative period and should be monitored but does not need immediate reporting unless excessive. D: A WBC count of 9,000/mm3 is within the normal range and does not indicate an immediate concern.

Correct Answer: B

Rationale: Irritability is an early sign that suctioning is required to clear secretions in a client with a tracheostomy. Hypotension, flushing, and bradycardia are not direct indicators for suctioning a tracheostomy. Hypotension may indicate a need for fluid resuscitation or other interventions, flushing could be due to various reasons like fever, and bradycardia may require evaluation for cardiac causes.

Correct Answer: A

Rationale: The correct answer is A: Administer antiemetic medication before meals. When a client receiving chemotherapy reports nausea and vomiting, administering antiemetic medication before meals is a priority intervention to help reduce nausea associated with chemotherapy. This proactive approach can prevent or minimize the symptoms, improving the client's quality of life during treatment. Choice B is incorrect because while encouraging the client to eat small, frequent meals can be helpful, administering antiemetic medication is the priority to address the immediate symptoms. Choice C is incorrect as avoiding eating during treatment may lead to nutritional deficits, and choice D is incorrect because providing cold beverages during meals may not effectively address the nausea and vomiting symptoms.