An infant weighs 9 pounds, 3 ounces at birth. When the infant is seven days old, the mother calls the pediatrician's office worried about her child's weight loss. What is the lowest acceptable weight the infant should be at this age?
1. 9 pounds
2. 8 pounds, 12 ounces
3. 8 pounds, 2 ounces
4. 7 pounds, 12 ounces
3
Rationale 1: An infant would not be expected to lose only 3 ounces during the first week of life.
Rationale 2: 8 pounds, 12 ounces is less than the expected one-tenth weight loss after birth.
Rationale 3: 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 seven days of age.
Rationale 4: 7 pounds, 12 ounces would be too much weight loss for this infant.
Global Rationale:
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