Clin Lab Values Quiz

Kahoot & study guide material!

What are the 2 methods of obtaining a total WBC count?

Automatic and manual

3 types of hematology analyzers

Independence analyzers, laser flow cytometry, quantitative buffy coat analysis

What is the name of the piece of equipment that is designed for manually counting skills?

Neubauer hemocytometer

What is the medical term for increased WBC count?

Leukocytosis

What is the medical term for decreased WBC count?

Leukopenia/leukocytopenia

A stress leukogram is caused by _______ and results in a _______.

Illness, lymphopenia

A physiological leukocytosis is caused by _______ and results in a ________.

Anxiety, lymphocytosis

Normal range for total canine WBC counts?

6,000-15,000/uL

Normal range for feline total WBC count?

5,500-19,500/uL

2 causes of leukocytosis

Pathogens, leukemia

2 causes of leukopenia

Viral infections, bone marrow disease

What objective do we use during the WBC differential?

100x, oil immersion

How many WBC’s do we count?

100

Where on the slide do we look for WBC?

Monolayer

What is the difference between the relative and absolute count?

Relative is a percentage, less accurate, and not used for diagnostics. Absolute is a whole number, more accurate, and is used for diagnostics.

Which is more accurate?

Absolute count

What is the formula for obtaining the absolute count?

Relative count x Total WBC

What are the units we use to measure the absolute count?

/uL

Canine relative for neutrophils?

60-70%

Feline relative for neutrophils?

35-75%

Canine absolute for neutrophils?

3,000-11,300/uL

Feline absolute for neutrophils?

2,500-12,500/uL

Increase of neutrophils:

Neutrophilia

Decrease in neutrophils:

Neutropenia

Canine relative for lymphocytes:

12-30%

Feline relative for lymphocytes:

20-55%

Canine absolute for lymphocytes:

1,000-4,800/uL

Feline absolute for lymphocytes:

1,500-7,000/uL

What animals are lymphocytes most abundant in?

Ruminants (Cattle, rabbits, some rodents)

Increase in lymphocytes:

Lymphocytosis

Decrease in lymphocytes:

Lymphopenia

True or false: Animals under 6 months of age can have increased lymphocyte counts

True

Canine relative for monocytes:

3-9%

Feline relative for monocytes:

1-4%

Canine absolute for monocytes:

200-1,300/uL

Feline absolute for monocytes:

0-900/uL

Monocytes become _______ once migrating to tissues

Macrophages

Monocytes are indicative of ______ infection or inflammation

Chronic

Canine relative for eosinphils:

2-10%

Feline relatives for eosinophils:

2-10%

Canine absolute for eosinophils:

100-750/uL

Feline absolute for eosinophils:

0-800/uL

When do we see eosinophilia most commonly?

Allergies and parasitic infections

Canine relatives for basophils:

0-3%

Feline relative for basophils:

0-3%

Canine absolute for basophils:

0-30/uL

Feline absolute for basophils:

0-30/uL

When might we see basophils in peripheral blood?

Severe allergies and parasites

What cell is often seen with basophils?

Eosinophils