The nurse is reviewing pre-operative laboratory studies of an adult client on a medical-surgical unit. Which result should be reported to the physician immediately?

Choice A reason:
This statement is incorrect. Insulin glargine is a long-acting insulin with a relatively steady effect and does not require eating within a specific timeframe after injection. It is designed to be injected once daily at any time of the day but at the same time every day.

Choice B reason:
This statement is incorrect. Insulin glargine should not be mixed with any other insulins in the same syringe. It is formulated to be clear and colorless, and mixing it with other insulins, especially rapid-acting insulins like lispro, can affect its action profile.

Choice C reason:
This statement is correct. Rotating the injection site is important to prevent lipodystrophy, which is the breakdown or buildup of fat beneath the skin that can occur with repeated injections at the same site. Rotating sites helps to ensure consistent insulin absorption.

Choice D reason:
This statement is correct. Insulin glargine should be administered in areas of subcutaneous fat, such as the upper arms, thighs, buttocks, or abdomen. The upper anterior aspect of the arm is an appropriate site for insulin injection.

Choice a reason:
Placing the client on 2L via nasal cannula is a common intervention for hypoxemia, but with the client's pulse oximetry at 88%, which is below the normal range of 95-100%, and the presence of tachypnea, a more immediate assessment of the client's respiratory status is warranted. Oxygen therapy should be guided by the results of arterial blood gas (ABG) analysis to tailor the treatment to the client's specific needs.

Choice b reason:
Obtaining a blood glucose level is not the most immediate concern in the context of altered mental status and respiratory distress. While it is important to rule out hypoglycemia as a cause of altered mental status, the primary concern indicated by the vital signs is the client's respiratory condition.

Choice c reason:
Calling the physician for an order for a stat arterial blood gas is the most appropriate action. The ABG will provide detailed information about the client's oxygenation, carbon dioxide levels, and acid-base balance. This is crucial for a client with a new onset change in mental status and tachypnea, as it can indicate respiratory failure or other serious complications of pneumonia.

Choice d reason:
Requesting an order for lorazepam is not appropriate given the client's current respiratory status. Lorazepam, a benzodiazepine, can depress the central nervous system and respiratory drive, potentially worsening the client's hypoxemia and respiratory effort.