VTNE Lab Questions set 1|Complete Questions with A+ Graded Answers

VTNE Lab Questions set 1|Complete Questions with A+ Graded Answers When performing a direct fecal smear to look for "swimmers" or parasitic trophozoites, the feces cannot be older than which of the following? 12 hours 5 minutes 1 hour 24 hours if not refrigerated 1 Hour Explanation Fresh feces are needed for a direct smear. The smear should be made and read within 1 hour of fecal collection for most accurate results. Also, serial samples are ideal. Sometimes 4 to 5 smears are needed to find an organism. A negative direct smear does not rule out a parasite. Which of these are used in the minor cross-match for blood products when looking for a compatible blood donor for a dog? Donor red blood cells, donor plasma Recipient red blood cells, donor plasma Recipient red blood cells, recipient plasma Donor red blood cells, recipient plasma Recipient red blood cells, donor plasma Explanation The correct answer is recipient red blood cells, donor plasma. In a minor crossmatch, you are looking to see if the factors in the plasma of the donor are going to react to the recipient's red blood cells. Which of the following is not a typical constituent of a urine sediment sample? Mast cells Red blood cells Squamous cells White blood cells Mast cells Explanation Mast cells would not be expected in a urine sediment sample. Squamous cells, transitional cells, and renal cells may be found in urine sediment. Squamous cells will likely be the largest cell visualized in a urine sample. They are usually derived from the vagina, vulva, or urethra. Red blood cells are a normal finding when in small numbers. Excessive red blood cells may be a sign of disease. White blood cells should also be present in a small number and large numbers of these cells are associated with disease. You are doing a fecal flotation and observe these eggs under the microscope. They have bipolar plugs; one plug on each end (see image). What are these? Whipworm eggs Hookworm eggs Tapeworm eggs Roundworm eggs Whipworm eggs