The nurse is preparing to administer the vitamin K injection to a newborn. Which action would be correct for this client?
Using a 21 gauge needle.
Injecting at a 45-degree angle.
Injecting 1cc of medication.
Injecting the medication into the vastus lateralis.
The Correct Answer is D
Injecting the medication into the vastus lateralis. This is because the vastus lateralis is a large muscle in the thigh that is suitable for intramuscular injections in newborns³. The vitamin K injection helps prevent vitamin K deficiency bleeding, which is a rare but serious condition that can cause bleeding in the brain or other organs¹. The American Academy of Pediatrics recommends that all newborns receive a single intramuscular dose of 0.5 to 1 mg of vitamin K within one hour of birth².
Choice A is wrong because a 21 gauge needle is too large for a newborn's muscle. A 25 or 27 gauge needle is more appropriate.
Choice B is wrong because injecting at a 45-degree angle may not reach the muscle tissue. A 90-degree angle is more appropriate.
Choice C is wrong because injecting 1cc of medication is too much for a newborn's muscle. The recommended dose of vitamin K is 0.5 to 1 mg, which is equivalent to 0.05 to 0.1 mL.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
The baby sleeps with the mother in bed. This is because sleeping with the baby in the same bed increases the risk of sudden infant death syndrome (SIDS), suffocation, strangulation, and entrapment. The nurse should have assessed the mother’s sleeping arrangements for the baby and provided education on safe sleep practices before discharge. The nurse should advise the mother to place the baby on a firm surface, such as a crib or bassinet, in the same room but not in the same bed as the mother.
Choice B is wrong because having windows covered with screens is not a sign of inadequate home assessment. Screens can help prevent insects and other animals from entering the home and posing a health hazard.
Choice C is wrong because having a refrigerator in the kitchen is not a sign of inadequate home assessment. A refrigerator can help store food and breast milk safely and prevent spoilage and contamination.
Choice D is wrong because having a changing area for the baby is not a sign of inadequate home assessment. A changing area can help keep the baby clean and comfortable and prevent diaper rash and infection.
Correct Answer is A
Explanation
This action helps to prevent cold stress. This is because cold stress is a condition where the newborn's core temperature drops below 36.5°C and they use energy and oxygen to generate warmth. This can lead to hypoglycemia, metabolic acidosis, hypoxia, and an increased risk of infection.
Placing the newborn under a radiant warmer provides thermal stability and prevents heat loss by radiation.
Choice B is wrong because thermogenesis is the process of heat production, not a complication.
Choice C is wrong because shivering is a mechanism of heat production in adults, not in newborns.
Choice D is wrong because brown fat production is a normal feature of newborns that helps them generate heat by lipolysis.
Here is an image of a newborn under a radiant warmer.

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