Correct Answer: B

Rationale: The correct answer is B: Administer insulin before meals as prescribed. This is the most important teaching point because insulin administration before meals helps manage blood sugar effectively in diabetic patients. Choice A is incorrect because monitoring blood sugar levels weekly may not provide timely information for managing diabetes. Choice C is incorrect as medications for diabetes should be taken as prescribed, not only when feeling unwell. Choice D is incorrect as blood sugar levels should be monitored at various times throughout the day, not just in the morning, to get a complete picture of the patient's condition.

Correct Answer: D

Rationale: During a 12-lead ECG, the client needs to remain still to obtain accurate readings. Therefore, instructing the client to remain still is essential. Choices A, B, and C are incorrect because fasting is not necessary for an ECG, providing a warm blanket is not a standard procedure, and applying cold compresses may interfere with the ECG results.

Correct Answer: C

Rationale: In this situation, the nurse's priority is to determine if the client is experiencing psychotic thinking as it addresses the immediate safety concern. Psychotic thinking may pose a risk to the client's safety or the safety of others. Referring the client to a mental health counselor (choice A) may be appropriate but not the priority when safety is a concern. Encouraging the client to express their feelings (choice B) and asking about their social support system (choice D) are essential aspects of care but are secondary to addressing immediate safety issues.

Correct Answer: B

Rationale: In clients with dementia, restlessness and agitation are important symptoms that the nurse should address first. These symptoms can indicate underlying issues such as pain, discomfort, or unmet needs, and addressing them promptly can prevent complications. Psychosocial stressors may contribute to the client's condition but should not be the initial priority. Frequent wandering at night and urinary incontinence are also common in dementia but do not pose immediate risks compared to restlessness and agitation.

Correct Answer: A

Rationale: Correct Answer: Increasing the client's oxygen flow rate should be the nurse's first action. Hypoxia is a common complication of pneumonia and can lead to confusion. Providing adequate oxygenation is essential in addressing hypoxia and improving the client's condition.\nOption B: Obtaining vital signs is important but addressing hypoxia takes precedence in the setting of new onset confusion.\nOption C: Administering an antibiotic is important for treating pneumonia but addressing hypoxia and confusion is the priority.\nOption D: Notifying the provider may be necessary but addressing the immediate physiological need of oxygenation should come first.