In which of the following areas should a nurse administer an injection for a newborn infant?
Deltoid muscle.
Vastus lateralis.
Gluteus maximus.
Rectus femoris.
The Correct Answer is B
Choice A rationale
The deltoid muscle is not recommended for newborns due to its small size and underdevelopment.
Choice B rationale
The vastus lateralis muscle is well-developed in newborns and has a large enough surface area to safely accommodate injections.
Choice C rationale
The gluteus maximus muscle is not suitable for newborn injections due to the risk of nerve damage.
Choice D rationale
The rectus femoris muscle is less commonly used due to the potential for more pain and discomfort.
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Correct Answer is B
Explanation
Choice A rationale
Vitamin K has no role in stabilizing blood glucose levels; hypoglycemia in newborns is managed differently.
Choice B rationale
Vitamin K is essential for blood clotting, and newborns typically have low stores at birth, necessitating supplementation to prevent bleeding disorders.
Choice C rationale
There is no established link between maternal fever and the need for vitamin K; prophylaxis is standard for all newborns regardless of maternal health.
Choice D rationale
Newborns do not have sufficient prothrombin or other clotting factors, which is why vitamin K administration is critical.
Correct Answer is C
Explanation
Choice A rationale
An APGAR score of 5 indicates significant distress and poor adjustment to extrauterine life, which is not consistent with the provided description of the infant's condition.
Choice B rationale
An APGAR score of 6 suggests moderate difficulty with extrauterine adaptation, which is still not entirely consistent with the overall assessment of the infant.
Choice C rationale
An APGAR score of 7 aligns with the described observations of the newborn: pink trunk and head, bluish extremities, active movement, heart rate of 130/min, and a response to
suctioning, which suggest the infant is in reasonably good condition with some minor issues that need monitoring.
Choice D rationale
An APGAR score of 8 would indicate that the newborn is in very good condition with only slight adjustments needed, which does not fully match the infant's description with the noted
issues like a weak cry and bluish extremities.