Which statement best explains why centrifugal flotation is generally more efficient than simple passive flotation?

A client with a young child asks whether every parasite found in a pet can infect people. Which response is most appropriate?

An outdoor cat has a draining subcutaneous swelling with a central pore and visible movement. Which immediate response is safest?

The clinic is preparing samples for three patients: a coughing cat suspected of feline lungworm, a dog with suspected bladder worms, and a dog undergoing heartworm evaluation. Which specimen-and-test plan best follows each parasite’s biology?

The clinic is planning parasite testing for three patients: an icteric cat that hunts lizards, a coughing dog that eats crayfish, and a dog with bloody diarrhea after swimming in freshwater. Which specimen-and-test plan best follows the biology of all three suspected flukes?

A dog develops painful subcutaneous nodules containing elongated larval cestodes after ingesting vertebrate prey. Repeated fecal examinations reveal no operculated ova. Which interpretation best reconciles the tissue finding and negative fecal results?

Imaging of an intermediate host reveals one dominant, thick-walled, expansile hepatic hydatid cyst containing internal membranes and daughter structures. Which parasite-stage pairing is most consistent with this pattern?

A farm dog that is routinely fed raw sheep offal has taeniid-type ova on fecal examination. Young children live in the home. Which instruction should the technician prioritize while confirmatory testing is pursued?

A dog from the southern United States has fever, marked muscle pain, a stiff gait, neutrophilia, muscle wasting, and periosteal proliferation. Repeated peripheral blood smears are unrewarding. Which transmission-and-sample plan best fits the leading diagnosis?

The veterinarian selects medication specifically to treat a protozoal infection. Which general parasiticide class best describes the intended target?