A 40-year-old woman presents to clinic with multiple complaints. She complains of swelling around her eyes (Image A) and generalized weakness. A complete blood count reveals eosinophilia. She recently returned from a trip to Asia where she reports having eaten street food, including pork. If this patient's disease is explained by a parasite that causes inflammation of skeletal muscle, what would be the appropriate treatment?
APraziquantel
BNiridazole
CAlbendazole or mebendazole
DIvermectin
EDiethylcarbamazine
A 68-year-old man presents to his physician for symptoms of chronic weight loss, abdominal bloating, and loose stools. He notes that he has also been bothered by a chronic cough. The patient’s laboratory work-up includes a WBC differential, which is remarkable for an eosinophil count of 9%. Stool samples are obtained, with ova and parasite examination revealing roundworm larvae in the stool and no eggs. Which of the following parasitic worms is the cause of this patient’s condition?
ATaenia saginata
BTaenia solium
CStrongyloides stercoralis
DNecator americanus
EAscaris lumbricoides
A 31-year-old man comes to the physician because of several months of recurrent abdominal pain and diarrhea. Six months ago, he traveled to Lake Superior for a fishing trip with his friends, during which they often ate their day's catch for dinner. Physical examination shows pallor. Laboratory studies show macrocytic anemia with eosinophilia. A peripheral blood smear shows megaloblasts and hypersegmented neutrophils. A cestode infection is suspected and a drug is prescribed that kills cestodes by inducing uncontrollable muscle spasm in the parasite. The drug prescribed for this patient most likely acts by which of the following mechanisms of action?
AIncreased calcium influx into the sarcoplasm
BIncreased potassium efflux from the sarcoplasm
CIncreased sodium efflux from the sarcoplasm
DPhosphorylation of adenosine diphosphate
EBlockade of myosin binding sites
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