Correct Answer: A

Rationale: The correct answer is A: Use aseptic technique for the insertion site. Aseptic technique is crucial for preventing infection when accessing or caring for an invasive monitoring system like a subdural intracranial pressure monitoring system. Aseptic technique involves maintaining a sterile field, washing hands, using sterile gloves, and using sterile supplies to minimize the risk of contamination. This is essential to prevent introducing harmful microorganisms into the patient's system. Using clean technique (B) or sterile technique only when cleansing the insertion site (C) may not provide adequate protection against infection. Closing leaks in the tubing with tape (D) is not an appropriate method for preventing infection and can lead to complications.

Correct Answer: A

Rationale: The correct answer is A: Hyperkalemia. In acute Addisonian crisis, the adrenal glands do not produce enough cortisol and aldosterone, leading to electrolyte imbalances. This results in increased potassium levels (hyperkalemia) due to lack of aldosterone to promote potassium excretion. Hypernatremia (choice B) is less likely as aldosterone deficiency leads to sodium loss. Reduced BUN (choice C) is unlikely as Addison's crisis does not directly affect urea levels. Hyperglycemia (choice D) is not typically seen in Addisonian crisis as cortisol deficiency usually results in hypoglycemia.

Correct Answer: A

Rationale: The correct answer is A: take a hot tub bath or shower in the morning. This is effective as the warm water helps to relax muscles and joints, reducing stiffness. It also improves circulation, which can alleviate morning stiffness in patients with rheumatoid arthritis. Incorrect choices: B: Putting joints through passive ROM before active movement may exacerbate stiffness if not done properly. C: Sleeping with a hot pad may provide temporary relief but does not address the root cause of morning stiffness. D: Taking aspirin can help with pain but does not directly address stiffness. Waiting 15 minutes before moving may not be as effective as soaking in warm water.

Correct Answer: A

Rationale: The correct answer is A: Increase fluid intake. This is important for a client undergoing radiation and chemotherapy for non-Hodgkin's lymphoma to prevent dehydration, help flush out toxins, and support kidney function. Increasing fluid intake can also help manage side effects like nausea and vomiting. Choices B, C, and D are incorrect because low-fat meals, soft bland foods, and foods rich in folic acid are not specifically indicated for clients undergoing radiation and chemotherapy for non-Hodgkin's lymphoma.

Correct Answer: B

Rationale: The correct answer is B, notifying the health care provider. This is the most appropriate initial intervention because chest pain can be a symptom of a serious medical condition like a heart attack. The health care provider needs to be informed immediately to assess the situation and provide appropriate treatment. Reassessing the patient (A) may delay crucial medical intervention. Administering pain medication (C) without knowing the cause of chest pain can be dangerous. Calling radiology for a chest x-ray (D) is not the initial step in managing new onset chest pain.