A nurse is preparing to administer vitamin K IM to a newborn. Into which of the following muscles should the nurse inject the medication?
Deltoid.
Dorsogluteal.
Ventrogluteal.
Vastus lateralis.
The Correct Answer is D
The correct answer is choice d. Vastus lateralis.
Choice A rationale:
The deltoid muscle is not typically used for newborn injections because it is too small and underdeveloped, making it an inappropriate site for intramuscular injections in this age group.
Choice B rationale:
The dorsogluteal muscle is also not recommended for newborns due to the risk of injury to the sciatic nerve and the muscle’s underdevelopment.
Choice C rationale:
The ventrogluteal muscle, while a good site for older children and adults, is not commonly used for newborns because it is not as easily accessible and developed as the vastus lateralis.
Choice D rationale:
The vastus lateralis muscle, located on the anterolateral aspect of the thigh, is the preferred site for intramuscular injections in newborns. It is well-developed and provides a large muscle mass, making it the safest and most effective site for administering vitamin K.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice B rationale:
The correct answer is Choice B, which is "Newborn hypoglycemia.”. Newborn hypoglycemia is a potential complication associated with maternal gestational diabetes. When a pregnant woman has gestational diabetes, her blood glucose levels can be elevated, leading to increased insulin production in the fetus. After birth, the baby's insulin production continues at a high level, which can result in a rapid drop in blood glucose levels, causing hypoglycemia. This condition can be serious and requires close monitoring and timely intervention to prevent complications in the newborn.
Choice A rationale :
Placenta previa is not a complication associated with maternal gestational diabetes. Placenta previa occurs when the placenta partially or completely covers the cervix, which can lead to bleeding during pregnancy and delivery. However, this condition is not directly related to gestational diabetes, and there is no physiological rationale connecting the two.
Choice C rationale
Small for gestational age (SGA) newborn is not a direct complication of maternal gestational diabetes. SGA refers to babies who are smaller in size than expected for their gestational age. While poorly controlled diabetes during pregnancy can lead to large babies (macrosomia), it is not typically associated with small babies.
Choice D rationale
Oligohydramnios, which is a condition characterized by low levels of amniotic fluid, is not a common complication associated with maternal gestational diabetes. Oligohydramnios can be caused by various factors, but it is not specifically linked to gestational diabetes.
Correct Answer is A
Explanation
The correct answer is choice A: Respiratory rate of 16/min.
Choice A rationale:
A respiratory rate of 16/min is within the normal range for adults, which is typically between 12 to 20 breaths per minute. In the context of severe preeclampsia, maintaining a normal respiratory rate is crucial when administering magnesium sulfate IV, as one of the signs of magnesium toxicity is respiratory depression. Therefore, a respiratory rate of 16/min indicates that the client is not experiencing respiratory depression and it is safe to continue the magnesium sulfate infusion.
Choice B rationale:
A heart rate of 60/min is at the lower end of the normal range, which is 60 to 100 beats per minute for adults. However, bradycardia or a low heart rate can be a sign of magnesium sulfate toxicity, especially if accompanied by other symptoms such as hypotension or altered mental status. Without additional context, a heart rate of 60/min alone does not necessarily indicate it is unsafe to continue the infusion, but it would require further assessment.
Choice C rationale:
A urine output of 50 mL in 4 hours is significantly below the expected minimum of 30 mL/hour for adults. Adequate urine output is an important indicator of kidney function and is essential for the excretion of magnesium. In the case of magnesium sulfate infusion for severe preeclampsia, a low urine output could indicate renal insufficiency and an increased risk of magnesium toxicity. Therefore, a urine output of 50 mL in 4 hours is a contraindication for continuing the infusion without further evaluation.
Choice D rationale:
Diminished deep-tendon reflexes can be a sign of magnesium toxicity. Deep-tendon reflexes are assessed to monitor for signs of magnesium overdose during infusion, as magnesium acts as a central nervous system depressant at high levels. If deep-tendon reflexes are diminished, it may suggest that the serum magnesium levels are too high, and the infusion should be paused or discontinued to prevent further toxicity.
In summary, the only finding that clearly indicates it is safe to continue the magnesium sulfate infusion is a normal respiratory rate, as provided in choice A. The other options either require further assessment or are indicators of potential magnesium toxicity.
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