A nurse is preparing to administer acetaminophen 10/mg/kg PO to a preschool child for fever. The child weighs 22 lb. Available is acetaminophen liquid 160 mg/5 mL. How many mL should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

C. Clubbing, characterized by bulbous enlargement of the fingertips and nail bed, is a result of chronic hypoxia in tetralogy of Fallot. In tetralogy of Fallot, there is a right-to-left shunting of blood due to the presence of a ventricular septal defect, overriding aorta, pulmonary stenosis, and right ventricular hypertrophy. This leads to reduced oxygenation of blood and chronic hypoxia, which can result in clubbing of the fingertips over time.

A This option is not the primary explanation for clubbing in tetralogy of Fallot. While decreased cardiac output may contribute to some manifestations of the condition, clubbing specifically results from chronic hypoxia rather than decreased cardiac output alone.

B Clubbing is not directly caused by a left-to-right shunting of blood. Instead, it is associated with chronic hypoxia, which can occur due to right-to-left shunting of blood in tetralogy of Fallot.

D Congestive heart failure may occur in individuals with tetralogy of Fallot but it is not the primary cause of clubbing. Clubbing in tetralogy of Fallot is primarily attributed to chronic hypoxia rather than heart failure alone.

A. Corticosteroids help reduce airway inflammation during an asthma exacerbation, which can help improve breathing and reduce symptoms.

D. Bronchodilator medications, such as albuterol, help relax the muscles around the airways, making it easier to breathe during an asthma exacerbation. They are typically used as rescue medications to provide immediate relief of asthma symptoms.

B. Placing the client in a supine position (lying flat on their back) is not recommended during an asthma exacerbation. This position can make breathing more difficult for someone experiencing respiratory distress.

C. Vigorous physical activity can exacerbate asthma symptoms and trigger an asthma attack. During an asthma exacerbation, it's important to encourage the client to rest and avoid strenuous activities that could worsen their breathing difficulties.

E. Cold compresses are not recommended for asthma exacerbations. Warm, moist air may help loosen mucus and ease breathing, but cold compresses could potentially exacerbate symptoms or discomfort.