Correct Answer: A

Rationale: In a newborn with respiratory distress syndrome who has received synthetic surfactant, monitoring oxygen saturation is crucial to evaluate the effectiveness of the treatment. Oxygen saturation levels provide valuable information about the newborn's respiratory status and the adequacy of gas exchange. Changes in oxygen saturation can indicate improvements or deterioration in the newborn's condition following the administration of synthetic surfactant. Monitoring oxygen saturation helps the nurse assess the newborn's response to treatment and make timely interventions if needed. Body temperature, serum bilirubin, and heart rate are important parameters to monitor in newborns for other conditions but are not specific indicators of the effectiveness of synthetic surfactant in treating respiratory distress syndrome.

Correct Answer: D

Rationale: The correct action to check for the Moro reflex in a newborn is to hold the newborn in a semi-sitting position and then allow the newborn's head and trunk to fall backward. The Moro reflex is elicited by a sudden loss of support or a loud noise. The normal response involves symmetrical abduction and extension of the arms, followed by their return to the midline in an embracing motion. Choices A, B, and C do not describe the correct method for assessing the Moro reflex and are therefore incorrect.

Correct Answer: B

Rationale: The regression in toilet training is a common adverse sibling response to the birth of a new baby. When a new sibling arrives, the older child may revert to behaviors from an earlier stage, such as bedwetting, to gain attention or cope with feelings of insecurity. This behavior is temporary and often resolves with time and reassurance. Recommending counseling or preschool at this point would be premature and not addressing the underlying cause of the behavior.

Correct Answer: B

Rationale: The correct answer is B. A continuous high-pitched cry is a characteristic sign of neonatal abstinence syndrome, indicating withdrawal from drugs. Choices A, C, and D are incorrect because decreased muscle tone, sleeping for 2 to 3 hours after a feeding, and mild tremors when disturbed are not specific indicators of neonatal abstinence syndrome.

Correct Answer: C

Rationale: Maternal serum alpha-fetoprotein (MSAFP) screening is recommended for all pregnant clients to assess the risk of neural tube defects. It is a routine screening test used to detect increased levels of alpha-fetoprotein in maternal blood, which may indicate a higher risk for conditions such as neural tube defects in the developing fetus. Therefore, all pregnant clients, regardless of their medical history or risk factors, should undergo MSAFP screening as part of routine prenatal care. Choices A, B, and D are incorrect because the MSAFP screening is not specific to certain medical conditions or histories; it is a standard screening procedure for all pregnant individuals to evaluate neural tube defect risk in the fetus.