A 3-day-old infant who weighs 6 lb (2722 g) is fed formula every 4 hours. Newborns require about 73 mL of fluid per pound (454 g) of body weight each day. In light of this information,approximately how much formula should the infant receive at each feeding?
2 to 3 oz (60 to 90 mL)
1 to 1.5 oz (30 to 45 mL)
4 to 5 oz (120 to 150 mL)
3 to 4 oz (90 to 120 mL)
The Correct Answer is A
A) 2 to 3 oz (60 to 90 mL):
To determine the appropriate amount of formula for this infant, first calculate the total fluid requirements for the day. The infant weighs 6 lb (2722 g), and newborns typically need 73 mL of fluid per pound of body weight per day.
6 lb × 73 mL = 438 mL of fluid required daily.
Since the infant is fed every 4 hours, this equates to approximately 6 feedings in a 24-hour period.
438 mL ÷ 6 feedings = 73 mL per feeding.
Converting this to ounces (since 1 oz = 30 mL), the infant would need about 2.5 oz per feeding. Therefore, 2 to 3 oz (60 to 90 mL) per feeding is appropriate to meet the infant's daily fluid needs.
B) 1 to 1.5 oz (30 to 45 mL):
This amount is insufficient for the infant’s daily fluid needs. At 1 to 1.5 oz per feeding, the total intake for the day would be only 180 to 270 mL, which is well below the required 438 mL. This could lead to dehydration and inadequate nourishment.
C) 4 to 5 oz (120 to 150 mL):
This amount is excessive for a 3-day-old infant. Newborns typically consume much smaller amounts at each feeding due to their smaller stomach capacity. Overfeeding could lead to discomfort and potential digestive issues.
D) 3 to 4 oz (90 to 120 mL):
While this range is closer to the required amount, it is still slightly too much for a 3-day-old infant. At this age, the recommended amount is closer to 2.5 oz per feeding, so 3 to 4 oz may be excessive and could contribute to overfeeding, which might be uncomfortable for the infant.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A) Don't do anything, this is a normal finding:
While it's true that acrocyanosis (bluish-purple discoloration of the hands and feet) can be a normal finding in the first 24-48 hours of life due to immature circulation, it’s important to assess the severity of the condition and rule out more serious causes. Just ignoring it without assessing the infant’s oxygenation status could lead to missing a potential respiratory issue.
B) Check the infant's O2 sat:
The most appropriate action is to assess the infant’s oxygen saturation levels. Acrocyanosis is typically benign and resolves on its own, but persistent cyanosis or a drop in oxygen saturation could indicate a more serious issue, such as respiratory distress or congenital heart disease. A pulse oximeter is a non-invasive tool that can help determine whether the infant’s oxygenation is adequate. This would help guide further clinical decisions.
C) Call the MD for referral:
Calling the doctor should only be considered if the baby’s oxygen saturation levels are low, or if other concerning symptoms (like poor feeding, lethargy, or significant difficulty breathing) are present. If the O2 saturation is normal, there’s no immediate need for referral. The key is to assess first before escalating to the provider.
D) Put socks and mittens on the infant to keep them warm:
Although providing warmth can help with maintaining body temperature, simply putting socks and mittens on the baby is not sufficient to rule out respiratory issues or other causes of cyanosis. If the infant’s oxygen saturation is normal and the baby is otherwise stable, this may be appropriate. However, checking the O2 saturation first is the correct step to ensure that no underlying respiratory problems are contributing to the cyanosis.
Correct Answer is D
Explanation
A. The fundus is palpable two fingerbreadths above the umbilicus:
While it is higher than expected, this finding may occur if the uterus is still contracting and involuting, as it can sometimes be positioned slightly higher. However, this is not necessarily a cause for concern, and further assessment would depend on other factors like bleeding or discomfort. If the fundus is firm and contractions are present, this finding may still be within a normal range.
B. The fundus is palpable at the level of the umbilicus:
At 12 hours postpartum, the fundus should generally be at the level of the umbilicus. This is an expected finding in the immediate postpartum period as the uterus is beginning to involute. No further action is required unless other complications, like excessive bleeding or signs of infection, are present.
C. The fundus is palpable one fingerbreadth below the umbilicus:
This is another typical finding 12 hours after birth. By this time, the uterus should be involuting and should be slightly below the umbilicus. A slight descent of the fundus is normal as the uterus shrinks and contracts. As long as the fundus is firm and there are no other concerning signs, this is a normal finding.
D. The fundus is palpable two fingerbreadths below the umbilicus:
A fundus palpated two fingerbreadths below the umbilicus 12 hours postpartum suggests that involution may not be progressing as expected. It could indicate uterine atony, where the uterus is not contracting effectively, increasing the risk for postpartum hemorrhage. This requires further assessment to rule out complications such as retained placental fragments or excessive bleeding. Immediate action, including uterine massage or other interventions, may be needed.
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