The nurse administers vitamin K to the newborn for which reason?
Most mothers have a diet deficient in vitamin K, which results in the infant’s being deficient.
Vitamin K prevents the synthesis of prothrombin in the liver and must be given by injection.
Bacteria that synthesize vitamin K are not present in the newborn’s intestinal tract.
The supply of vitamin K is inadequate for at least 3 to 4 months, and the newborn must be supplemented.
The Correct Answer is C
Bacteria that synthesize vitamin K is not present in the newborn’s intestinal tract. Vitamin K is essential for blood clotting, and newborns are at risk of bleeding problems due to their lack of vitamin K. Therefore, vitamin K is given by injection to prevent hemorrhagic disease in the newborn.
Choice A is wrong because most mothers do not have a diet deficient in vitamin K, and vitamin K deficiency in newborns is not related to the maternal diet.
Choice B is wrong because vitamin K does not prevent the synthesis of prothrombin in the liver, but rather enhances it. Prothrombin is a clotting factor that requires vitamin K for its production.
Choice D is wrong because the supply of vitamin K is not inadequate for at least 3 to 4 months, but rather for a few days until the newborn’s intestinal bacteria start producing it.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is E
Explanation
The presence or absence of anxiety is a noninvasive assessment that the RN would perform to evaluate the patient’s psychological status and possible signs of hypovolemic shock.
Anxiety can indicate reduced cerebral perfusion due to blood loss and low blood pressure.
Choice A is wrong because pulse oximetry is a noninvasive assessment that the RN would perform to measure the oxygen saturation of the patient’s blood, not the circulatory status.
Choice B is wrong because heart sounds are a noninvasive assessment that the RN would perform to auscultate the cardiac rhythm and rate of the patient, not the circulatory status.
Choice C is wrong because arterial pulses are a noninvasive assessment that the RN would perform to palpate the strength and quality of the patient’s peripheral pulses, not the circulatory status.
Choice D is wrong because skin color, temperature, and turgor are noninvasive assessments that the RN would perform to observe the skin integrity and hydration of the patient, not the circulatory status.
Normal ranges for pulse oximetry are 95% to 100%, for heart rate are 60 to 100 beats per minute, and for blood pressure are 120/80 mmHg.
Correct Answer is B
Explanation
The child should receive his regular dose of insulin even if he does not have an appetite. If the child is not eating as usual, he needs calories to prevent hypoglycemia. During periods of minor illness, the child with type 1 diabetes mellitus can be managed safely at home.
Choice A is wrong because giving the child half his regular morning dose of insulin can lead to hyperglycemia and ketoacidosis.
Choice C is wrong because giving the child plenty of unsweetened, clear liquids to prevent dehydration can also cause hypoglycemia.
Choice D is wrong because taking the child directly to the emergency department is not necessary unless the child has signs of severe dehydration, vomiting, abdominal
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