A nurse is caring for a client who has bleeding esophageal varices and is being treated with a Sengstaken-Blakemore tube. Which of the following actions should the nurse perform?

Choice A reason: Vesicles on the skin are not typical of inhalation anthrax; instead, they are more associated with cutaneous anthrax, which presents as papules that progress to vesicles and then black eschars.

Choice B reason: Respiratory failure can occur later in the course of inhalation anthrax, but it is not an early finding. It usually develops after the initial phase of nonspecific symptoms when the illness progresses to severe respiratory distress and shock.

Choice C reason: Sloughing of skin is not characteristic of inhalation anthrax. Similar to vesicles, skin sloughing may be associated with severe cutaneous infections or other dermatologic conditions, not the respiratory form of anthrax.

Choice D reason: Flu-like symptoms, such as fever, cough, malaise, muscle aches, and mild chest discomfort, are the initial and most indicative early findings of inhalation anthrax. These nonspecific symptoms often appear within several days after exposure before progressing to severe respiratory compromise.

Choice A: Cold and numb sensation distal to the fistula site is a possible indication of venous insufficiency. Venous insufficiency is a condition in which the veins have difficulty returning blood from the limbs to the heart, resulting in blood pooling and reduced perfusion. A new arteriovenous fistula can cause increased blood flow through the artery and decreased blood flow through the vein, leading to venous insufficiency. This can manifest as coldness, numbness, tingling, or cyanosis in the fingers or hand below the fistula site.

Choice B: A raised red rash around the fistula site is not a possible indication of venous insufficiency. A raised red rash around the fistula site can indicate an allergic reaction, an infection, or an inflammation of the skin or subcutaneous tissue. The nurse should assess the rash for size, shape, color, texture, temperature, and drainage, and report any signs of infection or inflammation, such as fever, pus, or swelling.

Choice C: Pain in the right arm proximal to the fistula site is not a possible indication of venous insufficiency. Pain in the right arm proximal to the fistula site can indicate arterial insufficiency, which is a condition in which the arteries have difficulty delivering oxygen-rich blood to the tissues, resulting in ischemia and necrosis. Arterial insufficiency can be caused by atherosclerosis, thrombosis, embolism, or vasospasm. The nurse should assess the pain for location, intensity, duration, frequency, and quality, and report any signs of ischemia or necrosis, such as pallor, coolness, weak pulses, or ulceration.

Choice D: Foul-smelling drainage from the fistula site is not a possible indication of venous insufficiency. Foul-smelling drainage from the fistula site can indicate an infection of the fistula or surrounding tissue. The nurse should assess the drainage for color, odor, amount, and consistency, and report any signs of infection or sepsis, such as fever, chills, malaise, or hypotension.