Final answer:
Among the given options, vomiting is the manifestation that a nurse should identify as an indication of withdrawal from an SSRI in a newborn, since it is a part of the neonatal abstinence syndrome associated with SSRI withdrawal.
Step-by-step explanation:
The question pertains to the potential withdrawal symptoms of a newborn whose mother took a selective serotonin reuptake inhibitor (SSRI) during pregnancy. Of the given options, vomiting is a symptom that could indicate SSRI withdrawal in a newborn. Infants exposed to SSRIs in utero might experience withdrawal, which can include symptoms such as respiratory distress, feeding difficulties, irritability, and gastrointestinal issues. Vomiting, along with other symptoms like tremors, sleep disturbances, and excessive crying, could be consistent parts of the neonatal abstinence syndrome associated with SSRI withdrawal.
While bradypnea (slow breathing rate) could be another indicator of SSRI withdrawal, it's less commonly mentioned specifically in relation to SSRI compared to vomiting and other above-stated symptoms. On the contrary, being large for gestational age and hyperglycemia are not commonly associated with SSRI withdrawal in newborns.