Final answer:
Chronic aspirin poisoning can mimic viral illness symptoms, acute ingestion at high doses is generally more severe, and severe poisoning cases may require hemodialysis.
Step-by-step explanation:
Chronic aspirin poisoning can sometimes be mistaken for viral illnesses due to overlapped nonspecific symptoms such as nausea, vomiting, and general malaise. Acute ingestion of aspirin becomes severely toxic at dosages of approximately 200 to 250 mg/kg, which may lead to life-threatening conditions and therefore generally considered more serious than chronic ingestion. However, chronic ingestion, defined by amounts greater than 100 mg/kg per day ingested over several days, can also be detrimental. For severe aspirin poisoning, treatment can include the use of hemodialysis rather than peritoneal dialysis, which is more efficient at removing salicylates from the body.