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 B
Explanation
Jaundice in an infant who is 4-hr old. This is because jaundice is a yellow discoloration of the skin and eyes caused by high levels of bilirubin in the blood. Jaundice usually appears between the second and fourth day after birth and lasts for one to two weeks. Jaundice that appears within the first 24 hours of life is considered early-onset jaundice and may indicate a serious problem, such as an infection, a blood type mismatch, or a liver disorder. The nurse should notify the charge nurse of this finding and request a blood test to check the bilirubin level.
Choice A is wrong because a hematocrit of 60% in an infant who is 8-hr old is not abnormal. Hematocrit is the percentage of red blood cells in the blood. Newborns normally have higher hematocrit levels than older children and adults because they have more red blood cells at birth.
Choice C is wrong because a blood glucose fingerstick of 40 mg/dL for an infant who is 1-hr old is not abnormal.
Blood glucose is the amount of sugar in the blood. Newborns normally have lower blood glucose levels than older children and adults because they have less glycogen (stored sugar) at birth.
Choice D is wrong because acrocyanosis in an infant who is 2-hr old is not abnormal. Acrocyanosis is a bluish discoloration of the hands and feet caused by poor circulation. Newborns normally have acrocyanosis for the first few days of life because they are adjusting to the temperature outside the womb.
Correct Answer is B
Explanation
Fundus firm, at the level of the umbilicus. This is because the normal postpartum uterine fundus location should be around the belly button (umbilicus) one hour after delivery and then decrease by 1 cm per 24 hours. A firm fundus indicates that the uterus is contracting well and preventing bleeding.
Choice A is wrong because a soft fundus indicates uterine atony, which is a risk factor for hemorrhage.
Choice C is wrong because the fundus should not be above the umbilicus 12 hours after delivery.
Choice D is wrong because a fundus to the right of the umbilicus indicates a full bladder, which can displace the uterus and cause bleeding.
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