A nurse is planning care for a preschooler who has leukemia. After reviewing the child's information, which of the following potential issues should the nurse identify that the child is at risk for developing? (Select all that apply.)

Choice A reason: This statement does not indicate a risk for rheumatic carditis, but rather a possible respiratory infection or asthma. Rheumatic carditis is an inflammatory condition of the heart valves that can result from untreated streptococcal pharyngitis.

Choice B reason: This statement does not indicate a risk for rheumatic carditis, but rather a sign of heart failure. Dyspnea, tachypnea, and hypoxia are common manifestations of heart failure in children with congenital heart defects.

Choice C reason: This statement does not indicate a risk for rheumatic carditis, but rather a normal finding for a client who has an IV access. A peripheral saline lock is used to administer fluids and medications as needed, and it should be monitored for signs of infection, infiltration, or phlebitis.

Choice D reason: This statement indicates a risk for rheumatic carditis, as lower extremity edema and decreased skin pigmentation are signs of erythema marginatum, a characteristic rash that occurs in some cases of rheumatic fever. Erythema marginatum is a pink or red rash that spreads from the trunk to the extremities, and it may fade and reappear with changes in temperature.

Choice A reason: Recurrent epigastric pain is not a complication of peptic ulcer disease, but rather a common symptom of it. Peptic ulcer disease is the erosion of the mucosal lining of the stomach or duodenum, which can cause pain, burning, or discomfort in the upper abdomen.

Choice B reason: Hyperactive bowel sounds are not a complication of peptic ulcer disease, but rather a normal finding in a child who has not eaten for a while. Hyperactive bowel sounds indicate increased peristalsis, which can be caused by hunger, stress, or infection.

Choice C reason: Yellowish-red emesis is a complication of peptic ulcer disease, as it indicates bleeding from the ulcer. Bleeding can occur when the ulcer erodes the blood vessels or the protective layer of the mucosa. Yellowish-red emesis means that the blood has been partially digested by the stomach acid, giving it a coffee-ground appearance.

Choice D reason: Melena stool is a complication of peptic ulcer disease, as it indicates bleeding from the ulcer. Melena stool is black and tarry, and it has a foul odor. It means that the blood has passed through the entire digestive tract, and has been altered by the intestinal bacteria and enzymes.