An infant weighs 9 pounds, 3 ounces at birth. The nurse plans to make a home visit to the mother and infant when the infant is 7 days old. What is the lowest acceptable weight the infant should be at this age?
1. 7 pounds, 12 ounces
2. 8 pounds, 2 ounces
3. 8 pounds, 12 ounces
4. 9 pounds
Correct Answer: 2
Rationale: In the first week of life, most infants lose about one-tenth of their birth weight; therefore, this infant's weight should be 8 pounds, 2 ounces at 7 days of age. A weight loss to 7 pounds, 12 ounces would be too much for this infant. A decline to 8 pounds, 12 ounces is less than the expected one-tenth weight loss after birth, and an infant would not be expected to lose only 3 ounces during the first week of life.
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