quizzes first half

Question 1

____ can be used to remove excess oil but can also dissolve the adhesives to secure the objective lenses.

Answer 1

Xylene

Question 2

A technician needs to take a 60 mg/dL solution and dilute it 1:5. What would be the concentration of the dilution?

Answer 2

60 divided by 5 = 12 mg/dL

Question 3

A technician needs to take a 40-mg/dL sample and dilute it 1:10. What would be the concentration of the dilution?

Answer 3

40 divided by 10 = 4 mg/dL

Question 4

Change 73 degrees Faheinheit to celcius?

Answer 4

22.8 degrees Celcius 73-32 divided by 1.8

Question 5

A test result comes back with a value of 45.6 x 10 to the -2 power. How would you write this as a correctly rounded standard decimal number?

Answer 5

0.46

Question 6

Quality control programs ensure the accuracy of laboratory results. Which term is defined by the magnitude of random errors and the reproducibility of measurements?

Answer 6

precision

Question 7

What tests does the refractometer do?

Answer 7

specific gravity for urine and total protein for blood

Question 8

An object is being viewed with a light compounding microscope that has an ocular lens with 10x magnification and the 100x objective . What is the magnification of the object?

Answer 8

1000x

Question 9

Which style of centrifuge has drilled hoes that hold test tubes and run at high speeds without causing excessive heat buildup that could damage the specimen?

Answer 9

angle arm centrifuge

Question 10

What type of microscope is an essential piece of laboratory equipment for a hospital laboratory

Answer 10

light compound microscope

Question 11

Specific protocols within a vet. hospital that mandate the correct use of hazardous chemicals are categorized as what type of controls?

Answer 11

administrative

Question 12

What documents provided by manufacturers of all hazardous materials must be readily available to employees at every vet. facility?

Answer 12

material data sheets

Question 13

An image is viewed through the microscope in which of the following ways?

Answer 13

upside down and reversed

Question 14

When using the metric system, the prefix milli- refers to which power of 10?

Answer 14

10 ¯³

Question 15

Which term refers to the condensing of the nucleus as the cell dies?

Answer 15

pyknosis

Question 16

When quantifying morphologic changes in red blood cells, a designation of 3+ would indicate approximately how many of the cells are affected by the morphologic change?

Answer 16

50%

Question 17

10 to the 12th power

Answer 17

tera-

Question 18

10⁹

Answer 18

giga-

Question 19

10⁶

Answer 19

mega-

Question 20

10³

Answer 20

kilo-

Question 21

10²

Answer 21

hecto-

Question 22

10¯²

Answer 22

centi-

Question 23

10¯⁶

Answer 23

micro-

Question 24

10¯⁹

Answer 24

nano-

Question 25

10 to the -12 power

Answer 25

pico-

Question 26

10 to the -15 power

Answer 26

femto-

Question 27

10 to the -18 power

Answer 27

atto-

Question 28

Smudge cell?

Answer 28

AKA - basket cells are degenerative leukocytes that have ruptured

Question 29

Karyolysis?

Answer 29

a degenerative change to the nucleus that is characterized by the dissolution of the nuclear membrane

Question 30

Karyorrhexis?

Answer 30

the fragmentation of the nucleus after cell death

Question 31

Apoptosis?

Answer 31

the death of single cells by a process involving shrinkage, rapid fragmentation, and the engulfment of the fragments by neighboring cells and macrophages

Question 32

A corrected reticulocyte count is calculated by? Problem: a dog has a PCV of 15% and an observed reticulocyte count of 15% - the normal dog 45%

Answer 32

multiplying the observed reticulocyte percentage by the observed PCV divided by the normal PCV (normal dog - 45%) (normal cat 35%) i.e. Answer is : 15 x 15 = 225 divided by 45 = 5 5% corrected reticulocyte count

Question 33

pancytopenia?

Answer 33

a medical condition in which there is a reduction in the number of red and white blood cells, as well as platelets

Question 34

neutropenia?

Answer 34

a decrease in neutrophil concentration.

Question 35

thrombocytopenia?

Answer 35

the medical term for a low blood platelet count

Question 36

The preferred anticoagulant for hematology studies is?

Answer 36

EDTA

Question 37

The preferred anticoagulant for clinical chemistry's?

Answer 37

Heparin

Question 38

A patient has severe flea infestation and shows signs of anemia. Which would be the best classification of anemia for this patient?

Answer 38

Hemorrhagic

Question 39

Hemolytic anemias?

Answer 39

the result of erthrocyte destruction within the blood, and they are usually regenerative

Question 40

Iron deficiency?

Answer 40

can be the result of a nutritionally deficient diet or from chronic blood loss

Question 41

production disorders?

Answer 41

reduced rates of erythropoiesis or defective erythropoiesis generally result in a normocytic anemia

Question 42

In evaluating a blood smear?

Answer 42

the counting area, where most of the evaluation takes place, is between the body and the feathered edge

Question 43

Platelets in mammals?

Answer 43

do not have nuclei

Question 44

Which type of sample of plasma can result in a false increases in the total protein reading?

Answer 44

lipemic sample

Question 45

Rouleaux formation?

Answer 45

is normal in horses and often shows RBCs appearing liked stacked coins

Question 46

What procedure must always accompany a complete blood count evaluation to determine the accuracy of the test?

Answer 46

morphological evaluation

Question 47

This platelet histogram shows?

Answer 47

normal platelet results - upward line, then slight angle down to 1 1/2 above 10 angling down to the 20 and then continuing to 27 along the bottom line

Question 48

This platelet histogram shows?

Answer 48

up, then down, with a slight upward line, then angled down to 1 1/2 inches from bottom above about 15 and slowly comes down with small rolling bumps to the 45 maybe touching bottom line

Question 49

High reticulocytes counts of more than 60,000/mL in dogs and more than 50,000/mL incats are compatible with?

Answer 49

regenerative anemia

Question 50

Manual cell counts are rarely performed except in which of the following animals?

Answer 50

bird

Question 51

Which type of WBC is not commonly seen on the blood film?

Answer 51

basophil

Question 52

Which of he erythrocyte indices is reported in grams per deciliter?

Answer 52

MCHC

Question 53

Which abnormality in erythrocytes is caused by insufficient hemoglobin in the cell?

Answer 53

hypochromasia

Question 54

An anucleated immature RBC seen in the peripheral blood of some mammals is a?

Answer 54

reticulocyte

Question 55

Which type of stain is est used to prepare a reticulocyte count smear?

Answer 55

Supravital

Question 56

anisocytosis is?

Answer 56

variation in cell size

Question 57

poikilocyte?

Answer 57

abnormally shaped cell

Question 58

Which abnormality is characterized by the appearance of clumping of erythrocytes (which does not go away in saline) and may be observed both macroscopically and microscpically? If it does go away in saline, it is called?

Answer 58

Autoagglutination Rouleaux

Question 59

A technician need to calculate the absolute value of neutrophils on a blood smear. The neutrophil percentage onthe relative white blood cell count is 78%, and hte total wBC count is 6,000/uL. What is this absolute value for this patient?

Answer 59

78 x 6000 = 4680 uL

Question 60

Reticulocyte count?

Answer 60

- add several drops of mew methylene blue to several drops of EDTAanticoagulated blood in small test tube - incubate for 10 min. at room temp - make a conventional blood smear - air dry - count a total of 1000 RBCs as reticulocytes which contain clumps of dark-staining aggregated organelles - calculate the percentage of reticulocytes by dividing the number of reticulocytes counted in previous step by 1000. A corrected reticulocyte percentage can be determined if the RBC is not available. CRP = % reticulocytes x patient's PCV divided by 45 (dog) or 37 (cat)

Question 61

Correct WBC count?

Answer 61

The correct WBC count = total nucleated cell count x 100 divided by nRBCs + 100

Question 62

The cells on a blood smear appear as small fragmented sections of erythrocytes. What is the term used for this abormality?

Answer 62

schistocytes

Question 63

Whole blood is composed of fluid and cells. What is the fluid component of whole blood?

Answer 63

plasma

Question 64

What is the medical term for this clinical sign of coagulopathy?

Answer 64

epistaxis? - nose bleed

Question 65

What is the full name of this test?

Answer 65

Bucca mucosa bleeding time

Question 66

What is the medical term for a decrease in the amount of platelets circulating in peripheral blood?

Answer 66

thrombocytopenia