Choice A rationale

While it is true that warfarin’s effectiveness can be affected by vitamin K, found in green leafy vegetables, it is not necessary to completely omit these from the diet. Instead, maintaining a consistent intake of vitamin K can help keep INR levels stable.

Choice B rationale

Over-the-counter pain relief medications, especially those that are nonsteroidal anti- inflammatory drugs (NSAIDs), can increase the risk of bleeding when taken with warfarin. Therefore, this advice is not correct.

Choice C rationale

Regular laboratory tests, specifically the International Normalized Ratio (INR), are crucial when taking warfarin to monitor its effectiveness and adjust the dosage if necessary.

Choice D rationale

Using an electric razor can help prevent cuts and bleeding, which is important because warfarin is a blood thinner. However, this information is not as critical as obtaining regular laboratory tests.

Choice E rationale

Obtaining a medical alert bracelet can be beneficial for individuals taking warfarin, as it can alert healthcare professionals in an emergency situation about the individual’s use of a blood thinner. However, this information is not as critical as obtaining regular laboratory tests.

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.