A nurse is caring for a client who is receiving oxygen at 2 L/min via a nasal cannula. The nurse recognizes the client is receiving which of the following inspired oxygen concentration?

A. Chronic drainage of fluid through the incision site:
While chronic drainage of fluid through the incision site can be a sign of wound complications, such as infection or poor wound healing, it is not as specific an indicator of impending wound dehiscence as the patient's report of "something giving way."

B. Report by patient that something has given way:
A patient reporting that something has given way is a significant indicator of potential wound dehiscence. Wound dehiscence refers to the partial or complete separation of the layers of a surgical wound, which can occur due to various factors such as poor wound healing, infection, or increased intra-abdominal pressure. Patients may describe a sensation of "something giving way" or "popping" if the wound starts to separate.

C. Drainage that is odorous and purulent:
Odorous and purulent drainage from an incision site may indicate an infection, which can contribute to wound dehiscence. However, this finding alone may not necessarily indicate immediate wound dehiscence.

D. Protrusion of visceral organs through a wound opening:
Protrusion of visceral organs through a wound opening is a severe complication known as evisceration, which is the most advanced stage of wound dehiscence. While this finding is indicative of a significant wound complication, it typically occurs after the initial separation of wound layers. Therefore, it is not an early sign that would alert the nurse to potential wound dehiscence

A) Calcium gluconate 1.5 grams IV now: Calcium gluconate is administered to counteract the effects of hyperkalemia by stabilizing the myocardial cell membrane. It does not lower potassium levels but helps protect the heart from potential dysrhythmias associated with high potassium levels.

B) Dextrose 50% injection (50ml) IV push now: Dextrose 50% injection, also known as D50W, is administered to temporarily shift potassium from the extracellular space into the intracellular space, thereby lowering serum potassium levels. It is commonly used in combination with insulin to facilitate the movement of potassium into cells.

C) Colace 100 mg PO now: Colace is a stool softener and does not affect serum potassium levels. It is not indicated for the treatment of hyperkalemia.

D) Regular insulin 10 units IV now: Regular insulin is administered with dextrose to facilitate the movement of potassium from the extracellular space into the intracellular space. Insulin stimulates the cellular uptake of glucose, which in turn drives potassium into cells along with glucose.

E) Potassium chloride 20 mEq orally now: Potassium chloride is contraindicated in the treatment of hyperkalemia as it would further increase serum potassium levels. It is typically used to supplement potassium in clients with hypokalemia, not hyperkalemia.