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 D
Explanation
This test measures the amount of chloride in the sweat, which is abnormally high in people with cystic fibrosis (CF). CF is an inherited disorder that affects the cells that produce mucus, sweat, and digestive juices.
Choice A is wrong because bronchoscopy is a procedure that allows the doctor to examine the airways and lungs, but it is not essential for diagnosing CF.
Choice B is wrong because serum calcium is a blood test that measures the level of calcium in the blood, which is not related to CF.
Choice C is wrong because urine creatinine is a test that measures the amount of creatinine in the urine, which reflects the kidney function, but it is not relevant to CF.
Normal ranges for sweat chloride test are:
- Less than 40 millimoles per liter (mmol/L) for children and adults
- Less than 30 mmol/L for infants younger than 6 months
A sweat chloride level of more than 60 mmol/L is considered positive for CF.
Correct Answer is C
Explanation
This is because self-monitoring of blood glucose allows children to learn how their blood sugar levels change in response to different factors such as food, exercise, stress, and medication.
It also helps them to adjust their insulin doses and dietary intake accordingly. Self-monitoring of blood glucose can improve glycemic control and reduce the risk of complications.
Choice A is wrong because it is not a less expensive method of testing.
Self-monitoring of blood glucose requires a glucose meter, test strips, lancets, and a logbook, which can be costly for some families.
Choice B is wrong because it is not less accurate than laboratory testing.
Self-monitoring of blood glucose can provide accurate and reliable results if done correctly and regularly.
Laboratory testing is usually done periodically to measure the average blood sugar level over the past 2 to 3 months (hemoglobin A1c).
Choice D is wrong because it implies that the parents are not involved in the child’s diabetes management.
Parents should still provide support and guidance to their children with diabetes, especially when they are young or newly diagnosed. Parents should also monitor their child’s blood glucose levels and help them with insulin administration if needed.
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