Final answer:
The cardinal symptoms of sepsis in a newborn include temperature instability, apnea, bradycardia, hypotension, difficulty feeding, irritability, and limpness. Late-onset disease may present with seizures, bulging fontanel, stiff neck, hemiparesis, and opisthotonos.
Step-by-step explanation:
The cardinal symptoms of sepsis in a newborn include temperature instability, apnea, bradycardia, hypotension, difficulty feeding, irritability, and limpness. These symptoms are indicative of early onset disease. Late-onset disease is more likely to present with symptoms such as seizures, bulging fontanel, stiff neck, hemiparesis, and opisthotonos.