A nurse is caring for a 6-month-old infant who is postoperative following a myringotomy. Which of the following pain scales should the nurse use to determine the infant's pain level?

Choice A reason: This choice is incorrect because a 1-year-old toddler who has roseola and a temperature of 39° C (102.2° F) is not the most urgent case to assess. Roseola is a viral infection that causes a rash on the trunk and limbs, followed by a high fever that lasts for several days. It usually affects infants and young children and is self-limiting.
The fever can be managed by giving antipyretics such as acetaminophen or ibuprofen, and by providing fluids and comfort measures. The fever does not indicate any serious complication or threat to life.

Choice B reason: This choice is incorrect because a 4-year-old child who has asthma and an O2 sat of 97% is not the most urgent case to assess. Asthma is a chronic respiratory condition that causes inflammation and narrowing of the airways, leading to wheezing, coughing, chest tightness, or shortness of breath. It may be triggered by allergens, irritants, exercise, or infections. The O2 sat is a measure of oxygen saturation in the blood, which indicates how well oxygen is delivered to the tissues. A normal O2 sat range is 95% to 100%, so an O2 sat of 97% indicates that the child has adequate oxygenation and is not in respiratory distress.

Choice C reason: This choice is correct because a 10-year-old child who has sickle cell anemia and reports severe chest pain is the most urgent case to assess. Sickle cell anemia is a genetic disorder that causes the red blood cells to become sickle-shaped and clump together, blocking the blood flow and oxygen delivery to the organs and tissues. It may cause severe pain in the chest, abdomen, joints, or bones, as well as symptoms such as pallor, jaundice, fatigue, or shortness of breath. Severe chest pain may indicate acute chest syndrome, which is a life-threatening complication of sickle cell anemia that involves infection or infarction of the lungs. It may cause fever, cough, hypoxia, or respiratory failure. Therefore, assessing and treating this child is a priority to prevent further damage and death.

Choice D reason: This choice is incorrect because a 7-year-old child who has diabetes insipidus and a urine specific gravity of 1.016 is not the most urgent case to assess. Diabetes insipidus is a rare disorder that affects the balance of fluids in the body. It causes the kidneys to produce large amounts of dilute urine, leading to polyuria, polydipsia, dehydration, or electrolyte imbalance. It may be caused by a deficiency of antidiuretic hormone (ADH) or a resistance to its action. The urine specific gravity is a measure of urine concentration, which indicates how well the kidneys are functioning. A normal urine specific gravity range is 1.005 to 1.030, so a urine specific gravity of 1.016 indicates that the child has normal urine concentration and is not dehydrated.

Choice A: Using a pain-rating tool to determine the severity of the joint pain is not the priority assessment for an 8-year-old child who has acute rheumatic fever, which is an inflammatory condition that can affect various organs, especially the heart, joints, skin, and brain. Joint pain is one of the major criteria for diagnosing acute rheumatic fever and can affect one or more large joints, such as knees, ankles, elbows, or wrists. Joint pain can be managed with analgesics or anti-inflammatory drugs.

Choice B: Assessing the client's erythematous rash is not the priority assessment for an 8-year-old child who has acute rheumatic fever, which is an inflammatory condition that can affect various organs, especially the heart, joints, skin, and brain. The erythematous rash is one of the minor criteria for diagnosing acute rheumatic fever and can appear as pink or red patches on the trunk or limbs. The erythematous rash can fade or change location over time and does not require any specific treatment.

Choice C: Identifying the degree of parental anxiety related to the diagnosis is not the priority assessment for an 8-year-old child who has acute rheumatic fever, which is an inflammatory condition that can affect various organs, especially the heart, joints, skin, and brain. Parental anxiety related to the diagnosis can affect their coping skills and ability to care for their child. Parental anxiety can be addressed by providing education, support, and referral to appropriate resources.

Choice D: Auscultating the rate and regularity of the child's heart sounds and notifying the provider immediately of abnormalities is the priority assessment for an 8-year-old child who has acute rheumatic fever, as it can indicate cardiac involvement, which is the most serious complication of acute rheumatic fever. Cardiac involvement can cause damage to the heart valves, myocardium, or pericardium and lead to heart failure or death. Abnormalities in heart sounds may include murmurs, rubs, gallops, or arrhythmias.