A nurse is caring for a newborn who is formula-fed. The newborn takes 0.5 oz of formula at 0800, 1 oz at 1100, 0.5 oz at 1300, 0.5 oz at 1600, and 0.5 oz at 1830. How many mL of formula should the nurse record as the client's intake for the shift?
15 mL.
30 mL.
45 mL.
60 mL.
The Correct Answer is D
Choice A rationale:
15 mL is not the correct choice because it only considers the first two feedings and does not account for the intake during the entire shift.
Choice B rationale:
30 mL is not the correct choice because it only considers the first three feedings and does not account for the intake during the entire shift.
Choice C rationale:
45 mL is not the correct choice because it only considers the first four feedings and does not account for the intake during the entire shift.
Choice D rationale:
The nurse should record 60 mL of formula as the newborn's intake for the shift. To calculate the total intake, you add the amounts from each feeding: 0.5 oz + 1 oz + 0.5 oz + 0.5 oz + 0.5 oz = 60 mL. Remember that 1 fluid ounce (oz) is approximately equal to 30 mL.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A rationale:
Placing the newborn in an incubator is essential because the newborn's temperature control mechanism is immature. Premature infants have an underdeveloped thermoregulatory system, making them susceptible to heat loss and cold stress. An incubator provides a controlled, warm environment to maintain the newborn's body temperature within the normal range (around 36.5°C to 37.5°C or 97.7°F to 99.5°F).
Choice B rationale:
Heat increasing the flow of oxygen to the newborn's extremities is not a valid reason for placing the newborn in an incubator. Oxygenation is primarily influenced by respiratory and circulatory mechanisms, not external heat.
Choice C rationale:
The newborn's small body surface area for his weight is not directly related to the need for an incubator. Premature infants have a higher surface area to weight ratio, making them more prone to heat loss, but this is not the primary reason for using an incubator.
Choice D rationale:
Heat facilitating the drainage of mucus is not a reason for placing the newborn in an incubator. Proper positioning and suctioning are used to manage mucus in premature infants, but incubators are primarily for temperature regulation.
Correct Answer is C
Explanation
Fetal circulation continues until after the stress of labor.
Choice A rationale:
Fetal circulation undergoes significant changes at birth. It becomes ineffective as the transition from intrauterine to extrauterine life occurs. The foramen ovale and ductus arteriosus, which allow blood to bypass certain fetal circulatory pathways, close as the baby breathes for the first time.
Choice B rationale:
Fetal circulation does not continue until red blood cells are broken down. Red blood cells in a fetus have a shorter lifespan than those in adults and are continually replaced throughout gestation. However, their breakdown is not the reason for the changes in fetal circulation.
Choice C rationale:
The correct answer. Fetal circulation continues until after the stress of labor. During labor, the baby experiences increased stress and pressure, which helps trigger various physiological changes, including the closure of specific fetal circulatory shunts.
Choice D rationale:
Fetal circulation does not continue until adulthood. As mentioned earlier, the transition from fetal to adult circulation occurs during and after birth, with the closure of specific fetal shunts and the establishment of a fully functional adult circulatory system.
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