The recommended method of screening for overweight in children and adolescents is measuring the child's:

Choice A reason: This statement is incorrect, as weight alone is not a reliable indicator of overweight or obesity in children and adolescents, as it does not account for the variations in growth, age, sex, and body composition. The nurse should use weight in conjunction with other measures, such as height, BMI, and growth charts, to assess the nutritional status and health risks of the child.

Choice B reason: This statement is incorrect, as height alone is not a reliable indicator of overweight or obesity in children and adolescents, as it does not account for the variations in growth, age, sex, and body composition. The nurse should use height in conjunction with other measures, such as weight, BMI, and growth charts, to assess the nutritional status and health risks of the child.

Choice C reason: This statement is incorrect, as body surface area (BSA) is not a recommended method of screening for overweight or obesity in children and adolescents, as it is not widely used or validated in this population. BSA is a measure of the total area of the skin, which can be calculated using various formulas based on weight and height. BSA is mainly used for dosing certain medications, such as chemotherapy, and for estimating the metabolic rate.

Choice D reason: This statement is correct, as body mass index (BMI) is the recommended method of screening for overweight or obesity in children and adolescents, as it is a simple and standardized measure of body fatness that can be used for comparison across different populations and age groups. BMI is calculated by dividing the weight in kilograms by the height in meters squared. The nurse should use the BMI-for-age percentile charts to interpret the BMI value and classify the child as underweight, healthy weight, overweight, or obese

Choice A reason: This statement is incorrect, as ibuprofen is not recommended for infants under 6 months of age due to the risk of kidney damage and bleeding. Cool wet sponges can also cause shivering and increase the body temperature. The nurse should advise the father to avoid these methods and seek medical attention.

Choice B reason: This statement is incorrect, as acetaminophen is not enough to treat a high fever in a 2-month-old infant. The nurse should also inform the father that the normal dose of acetaminophen for infants is 10 to 15 mg/kg every 4 to 6 hours, and that he should not exceed 5 doses in 24 hours. The nurse should urge the father to take the infant to the urgent care clinic as soon as possible.

Choice C reason: This statement is correct, as a fever of 38.5°C (101.3°F) or higher in an infant under 3 months of age is considered a medical emergency and requires immediate evaluation and treatment. The nurse should explain to the father that a high fever in a young infant can indicate a serious infection, such as meningitis, sepsis, or urinary tract infection, and that the infant needs to be seen by a doctor right away.

Choice D reason: This statement is incorrect, as putting the infant in a cool bath can cause hypothermia and shock. The nurse should advise the father to avoid this method and seek medical attention.