The nurse is assessing a 6-month-old healthy infant who weighed 7 pounds at birth. The nurse should expect the infant to now weigh approximately:
a. 10 pounds. c. 20 pounds.
b. 15 pounds. d. 25 pounds.
ANS: B
Birth weight doubles at about age 5 to 6 months. At 6 months, an infant who weighed 7 pounds at birth would weigh approximately 15 pounds. Ten pounds is too little; the infant would have gone from the 50th percentile at birth to below the 5th percentile. Twenty pounds or more is too much; the infant would have tripled the birth weight at 6 months.
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