ACTUAL TEST Questions and Answers Solved

3 (ACTUAL TEST ) Questions and Answers (Solved)

• The modified Knott's technique can be used to isolate the diagnostic stage of

which of the following parasites?

Answer: Dirofilaria immitis.

• If the serum at the top of a microhematocrit tube appears cloudy, how is it

described?

Answer: Lipemic.

• Which of the following is true about the appearance of an image relative to the

orientation of the slide when viewing through a compound microscope?-

Answer: The image is upside-down and reversed.

• You are making serial dilutions of a sample in the laboratory. You start by making

a 1:5 dilution of a serum sample. You then take this new solution and make a serial

1:5 dilution of it. What is the dilution ratio of this new solution?

Answer: 1:25.When calculating the final dilution ratio of a serial dilution, you must multiply the dilution factors. Here 1:5 is multiplied by 1:5 and the final dilution is (1 x 1):(5 x 5)

= 1:25.

• What is the preferred stain to identify reticulocytes and Heinz bodies in

erythrocytes?

Answer: New methylene blue.

• A Yorkie is presenting for a bile acids test and has been fasted. Which of the

following is true regarding a bile acids test?

Answer: It is a measure of liver function.

• Which region of the blood smear should be used for the differential cell count?

Answer: The monolayer region.

• A patient with DIC (Disseminated Intravascular Coagulation) may show

abnormal red blood cells called schistocytes. What are schistocytes?

Answer: Red blood cell fragments.

Patients with DIC frequently have schistocytes and decreased platelets on their blood smears. Schistocytes are red blood cell fragments.

• / 3

• After performing a blood smear in a patient it is determined that macrocytosis is

present. Which value would be expected to be elevated based on this observation on a complete blood count?

Answer: Mean corpuscular volume.

• Which test would provide the best measure of liver function?

Answer: Bile acids.

• You are doing a CBC on an anemic patient. Which of the following cells, if you

see them while doing the differential, will change the final leukocyte count?

Answer: Nucleated Red Blood Cells.

• A blood smear is performed and a large variation is seen in erythrocyte shape.

What is this called?

Answer: Poikilocytosis.

• The pet in this photo is being tested for what condition?

Answer: Glaucoma.

• When evaluating urine sediment, a clear-colored square crystal with an X across

the surface is noted throughout the sample. What crystal is this likely to be?

Answer: Calcium oxalate.

• Which of the following is not a typical constituent of a urine sediment sample?

Answer: Mast cells.

• A woman presents with her 10-week-old kitten who has been having diarrhea.

She brought a fresh fecal sample and you perform a fecal flotation while the doctor is performing his exam. You see the following under the microscope (see image). What do you tell the doctor when he asks about the fecal?

Answer: The kitten has roundworms.

• What is the optimal method of sampling if a urine culture is to be performed in a

dog?

Answer: Cystocentesis.

• Which of the following tests is best for evaluating a dog with possible exocrine

pancreatic insufficiency?

Answer: Serum trypsin-like immunoreactivity (TLI.)

• / 3

• When running a PCV, why are the red cells at the bottom and white cells at the

top of the hematocrit tube?

Answer: Red cells are heavier.

• A cat presents with watery diarrhea. On fecal examination, a wet mount shows

motile protozoal trophozoites; a centrifugal zinc sulfate fecal flotation shows cysts of the parasite. Which of the following is the most acceptable treatment?

Answer: Metronidazole.

• You are processing a fluid sample from a cerebrospinal fluid tap. There is some

blood contamination of the sample. Which of the following values can be most significantly changed by blood contamination and is frequently corrected for when analyzing the results?

Answer: Nucleated cell count.

• A dark, amber-colored sample of urine is likely to have what specific gravity

value?

Answer: Very high specific gravity.

• Which blood chemistry value may be artificially lowered if analysis of a blood

sample is delayed?

Answer: Glucose.

• Microscopic evaluation of peritoneal fluid would be useful in a horse with which

of the following?

Answer: Colic.

• When collecting a sample, when should the needle never be re-directed?-

Answer: Cystocentesis.

• Which of the following is an abnormal finding in an intact male dog's urine

sediment sample performed from a free catch?

Answer: 10-15 WBC per high-powered field.

• You are viewing a blood sample in a compound microscope at a 20X objective

lens. This microscope (as with most compound microscopes) has an ocular lens that has 10X magnification. What is the total magnification at which you are viewing the sample?

Answer: 200X.

• Which is NOT true of cytology?

Answer: It evaluates tissue architecture.

• / 3