Which is an important nursing consideration in the care of the newborn with PKU?

Correct Answer: C

Rationale: Encouraging the breastfeeding mother to adhere to a low-phenylalanine diet is an important nursing consideration in the care of the newborn with PKU. Phenylketonuria (PKU) is an inborn error of metabolism in which the body cannot metabolize phenylalanine properly. If a newborn with PKU consumes formula or breast milk that contains high levels of phenylalanine, it can lead to severe intellectual disability and other health complications. By encouraging the breastfeeding mother to follow a low-phenylalanine diet, the newborn's exposure to phenylalanine can be minimized, helping to prevent the negative effects of PKU.

Correct Answer: B

Rationale: IgE is the immunoglobulin specific to an allergic response. When an individual is exposed to an allergen, the immune system produces IgE antibodies that bind to mast cells and basophils. Upon re-exposure to the same allergen, these IgE antibodies trigger the release of histamine and other chemicals that cause allergic symptoms such as itching, swelling, and inflammation. IgE is not normally found in high concentrations in the bloodstream unless there is an allergic reaction occurring. Other immunoglobulins like IgA, IgG, and IgM are not specifically associated with allergic responses.

Correct Answer: D

Rationale: Neonatal diabetes is not commonly associated with prenatal cigarette smoke exposure.

Correct Answer: C

Rationale: Toddlers typically engage in parallel play rather than cooperative play.

Correct Answer: C

Rationale: During a lumbar puncture procedure, it is important to position the patient correctly to facilitate the procedure and minimize the risk of complications. Placing the patient on their side with their knees drawn up to their chest helps open up the spaces in the lower spine, making it easier for the healthcare provider to access the appropriate area for the procedure. This position also helps to minimize the risk of post-procedure complications such as spinal headaches. Monitoring the patient's vital signs is important but does not specifically relate to the nursing intervention during the lumbar puncture procedure. Labeling laboratory specimens in numerical order is also a routine task but not directly related to the procedure itself. Thus, the correct intervention during the lumbar puncture procedure is positioning the patient on their side with knees drawn up to the chest.