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Hematology > Hematology Test 2 > Flashcards

Hematology Test 2 Flashcards

1
Q

define anisocytosis

A

red blood cells with variation in size

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2
Q

define poikilocytosis

A

increase in abnormal red blood cells of any shape

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3
Q

What is a band or stab more commonly known as?

A

immature neutrophils

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4
Q

define hemoconcentration

A

increase in non-filterable blood components and a decrease in plasma

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5
Q

define hematopoiesis

A

blood cell formation

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6
Q

define erythropoiesis

A

red blood cell production

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7
Q

define erythropoietin

A

hormone released by kidneys to stimulate RBC production

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8
Q

define anemia

A

a condition marked by a deficiency of red blood cells

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9
Q

define polycythemia

A

increase in red blood cells

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10
Q

At what angle do you spread the blood for blood smears?

A

25-30 degrees

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11
Q

What is CBC?

A

Complete Blood Count

The calculation of cellular elements of the blood

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12
Q

What is a crenated cell?

A

When blood cells shrink

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13
Q

What do differential tests measure?

A

proportion of WBC’s in whole blood

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14
Q

what is fibrinogen?

A

causes cells to stick together (clotting) and creates rouleaux effect

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15
Q

What does hematocrit measure?

A

volume of red blood cells in whole blood

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16
Q

What is a hemocytoblast?

A

common stem cell that forms lymphoid stem cells and myeloid stem cells

17
Q

define hemoglobin

A

iron-binding molecule that carries and transports oxygen to cells

18
Q

List ESR methods

A

Westergren, Wintrobe, Landao and Cutter

19
Q

What is Von Willebrand’s disease?

A

a bleeding disorder caused by low levels of clotting protein in the blood - lacking factor VIII

20
Q

What is Von Willebrand’s disease?

A

a bleeding disorder caused by low levels of clotting protein in the blood - lacking factor VIII

21
Q

What is MCH and its unit of measurement

A

Mean Corpuscular Hemoglobin - measured in picograms

22
Q

What is MCHC and its unit of measurement

A

Mean Corpuscular Hemoglobin Concentration - g/dL

23
Q

What is MCV and its unit of measurement

A

Mean Corpuscular Volume - cubic micrometers

24
Q

What is intrinsic pathway affected by?

A

Heparin

25
Q

What is intrinsic pathway affected by?

A

Heparin

26
Q

What is the life span of platelets

A

9-10 days

27
Q

What is thrombocytopenia?

A

platelet shortage

28
Q

What is histamine released by?

A

Basophils

Hematology (3 decks)

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