If a patient has a confirmed A. lumbricoides infection, it is very possible that multiple worms are present. Therefore, observation would be inadequate. Further evaluation of the bowel is not likely to be helpful because it will not change management; thus, colonoscopy and/or capsule endoscopy are not warranted. Biliary sphincterotomy would not preclude additional worms from migrating into the pancreatic or bile ducts. A single dose of 400 mg of albendazole is usually sufficient to treat A. lumbricoides infection.