Correct Answer: D

Rationale: The correct answer is to carefully observe the client throughout the shift. In this situation, the client's behavior suggests agitation and restlessness, which could potentially escalate. Observation is crucial to monitor any changes in behavior, assess for signs of distress, and ensure the client's safety. Taking the client's temperature and blood pressure (Choice A) may not address the immediate need for managing the client's behavior. Encouraging the client to rest (Choice B) might not be effective if the client is highly agitated. Planning an activity that includes physical exercise (Choice C) could exacerbate the situation rather than address the current behavior. Therefore, the priority is to observe the client closely to provide appropriate support and intervention as needed.

Correct Answer: D

Rationale: The correct answer is D: Absence of ketones in the urine. In a client with diabetic ketoacidosis (DKA) receiving an insulin infusion, the absence of ketones in the urine indicates that ketoacidosis is resolving. This is a crucial finding as it shows that the insulin therapy is effectively addressing the metabolic imbalance causing DKA. Choices A, B, and C are incorrect: A potassium level of 4.0 mEq/L is within normal range but does not directly reflect the resolution of DKA; a blood glucose level of 180 mg/dL, while improved, is still high and does not specifically indicate the resolution of ketoacidosis; urine output of 50 mL/hour is within normal limits but does not directly point to the resolution of DKA.

Correct Answer: B

Rationale: Fixed, dilated pupils are a sign of increased intracranial pressure or brain injury, indicating a potentially serious neurological condition. Flaccid paralysis, although concerning, may not always indicate immediate life-threatening issues. Diminished spinal reflexes and reduced sensory responses are important neurological assessments but are not as acutely concerning as fixed, dilated pupils in this context.

Correct Answer: B

Rationale: Assessing for dyspnea or stridor is crucial as these are signs of airway compromise, which is a priority concern in burns involving the face. Burns on the face can lead to airway swelling or compromise due to airway proximity, making respiratory assessment the top priority. Covering the areas with dry sterile dressings, initiating intravenous therapy, and administering pain medication are important interventions but assessing for airway issues takes precedence in this situation.

Correct Answer: B

Rationale: An adolescent expressing 'life without purpose' after taking duloxetine (Cymbalta) may be indicating suicidal ideation, which requires immediate attention. The initial period of antidepressant treatment can increase the risk of suicidal thoughts, especially in younger populations. Increased appetite (Choice A) is a common side effect of duloxetine and may not require immediate follow-up. Mood swings (Choice C) and insomnia (Choice D) are also possible side effects of the medication but are not as urgent as addressing suicidal ideation.