Choice D rationale

The symptoms described - edema, severe pain, paresthesia, and tightness of the operative limb

- are indicative of Compartment Syndrome. This is a serious condition that can occur after surgery, where increased pressure within one of the body’s compartments results in insufficient blood supply to the area. It requires immediate treatment to prevent permanent damage.

Choice A rationale

While wound infection is a possible post-operative complication, it would typically present with symptoms such as redness, increased pain at the wound site, purulent discharge, and possibly fever. The symptoms described do not specifically indicate a wound infection.

Choice B rationale

Internal bleeding could cause pain and swelling, but it would likely also present with signs of shock, such as low blood pressure, increased heart rate, and altered mental status. The symptoms provided do not clearly indicate internal bleeding.

Choice C rationale

Graft rupture is a serious complication that could potentially cause severe pain and swelling. However, it would also likely cause significant hemodynamic instability, including hypotension and tachycardia. The symptoms described are more indicative of Compartment Syndrome.

Choice D rationale

Hyperosmolar Hyperglycemic Syndrome (HHS) is a serious complication of diabetes that occurs when blood sugar levels are extremely high. The primary treatment for HHS is intravenous fluids and insulin. Specifically, 0.9% saline solution IV is often used initially to restore volume and correct severe dehydration.

Choice A rationale

Administration of Glucagon is not the primary treatment for HHS. Glucagon is a hormone that raises blood glucose levels and would not be beneficial in a situation where blood glucose is already extremely high.

Choice B rationale

Dextrose 50% is a concentrated glucose solution and would not be appropriate in the treatment of HHS, where blood glucose levels are already dangerously high.

Choice C rationale

While IV fluids are a crucial part of the treatment for HHS, 0.45% Normal Saline (also known as half-normal saline) is a hypotonic solution and is not typically the first choice for fluid resuscitation in HHS. The preferred initial fluid is often 0.9% saline (normal saline), which is isotonic.