What should the parents of infants with a positive phenylketonuria (PKU) test be instructed to do?
Give the infant a high protein diet.
Provide the infant with a diet containing small amounts of phenylalanine.
Early introduction of cow’s milk may be necessary before 1 year of age.
Follow up with a pediatric cardiologist.
The Correct Answer is B
Choice A rationale
Giving an infant with a positive PKU test a high protein diet is not recommended. This is because phenylalanine, which cannot be broken down by individuals with PKU, is found in high-protein foods.
Choice B rationale
Parents of infants with a positive PKU test should provide the infant with a diet containing small amounts of phenylalanine. This is because while phenylalanine is harmful in large amounts to individuals with PKU, it is still an essential amino acid that the body needs in small amounts.
Choice C rationale
Early introduction of cow’s milk is not necessary before 1 year of age for infants with a positive PKU test. In fact, cow’s milk is high in phenylalanine and should be avoided.
Choice D rationale
Following up with a pediatric cardiologist is not specifically related to the dietary management of PKU. While regular medical supervision is important for children with PKU, it does not necessarily have to be with a cardiologist.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["220.6 "]
Explanation
Here's the breakdown of the calculation:
Calculate the concentration of the medication after adding diluent:
Concentration = (Amount of medication) / (Total volume)
Concentration = (1 gm) / (3.4 mL)
Concentration = 0.294 mg/mL
Determine the desired amount of medication per dose:
Desired amount = 750 mg
Calculate the volume of the prepared solution needed to deliver the desired amount of medication:
Volume = (Desired amount) / (Concentration)
Volume = (750 mg) / (0.294 mg/mL)
Volume = 2551.36 mL ≈ 220.6 mL (rounded to one decimal place)
Therefore, you would need to administer approximately 220.6 mL of the prepared solution per dose to deliver 750mg of cefotaxime.
Correct Answer is A
Explanation
Choice A is correct. The square window angle, formed by the intersection of the ear and the jawline, is an important physical assessment finding in neonates. In full-term babies, this angle is typically greater than 90 degrees, appearing more rounded. However, in preterm babies, the angle is often closer to 90 degrees, appearing more square due to underdeveloped facial features and subcutaneous tissue.
Choice B is incorrect. While leathery and cracked skin can be present in both term and preterm babies, it's not a specific indicator of prematurity alone. It can be caused by various factors like intrauterine growth restriction, dehydration, or underlying skin conditions.
Choice C is incorrect. The popliteal angle, formed by flexing the knee and measuring the angle between the thigh and lower leg, is not a reliable indicator of prematurity. It can vary even among term babies and is influenced by other factors like muscle tone and positioning.
Choice D is incorrect. Pronounced plantar creases, the lines on the soles of the feet, are also not specific to prematurity. While they may be deeper in some preterm babies, they can also be present in full-term infants and their depth can vary greatly between individuals.
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