Basic Concepts of Hematology

Question 1

Study of diseases of blood, concentration, morphology and function, precursor of blood cells

Answer 1

Hematology

Question 2

Cessation of bleeding

Answer 2

Hemostasis

Question 3

Thrombosis is a process of

Answer 3

Clot formation

Question 4

In 1657, He describes “worms” in blood7

Answer 4

Athanasius Kircher

Question 5

In 1674, He discovered RBC by using the microscope

Answer 5

Anton Van Leeuwenhoek

Question 6

He described platelet as ‘petite plaques’

Answer 6

Guilio Bizzozero

Question 7

Blood composition that is composed of
- Erythrocytes
- Plateletes
- Leukocytes
- Plasma

Answer 7

Whole Blood

Question 8

White small layer; w/ packed cell volume and plasma

Answer 8

Buffy coat

Question 9

Plasma is composed of

Answer 9

Leukocytes and Platelets

Question 10

Fluid by which blood is allowed to clot

Answer 10

Serum

Question 11

Serum appears to be

Answer 11

Clear and straw

Question 12

Fluid by which blood is not clotted

Answer 12

Plasma

Question 13

Plasma appears to be

Answer 13

Hazy with yellow pale color

Question 14

Percentage of blood in the body

Answer 14

8%

Question 15

Percentage of packed cell volume

Answer 15

45%

Question 16

Percentage of Plasma

Answer 16

55%

Question 17

Estimated count of Platelets in the body

Answer 17

200-400k

Question 18

Estimated count of WBC in the body

Answer 18

5-9k WBC

Question 19

Estimated count of RBC in the body

Answer 19

4.2 - 6.2 Million

Question 20

Percentage of Neutrophils

Answer 20

60-70%

Question 21

Percentage of Lymphocytes

Answer 21

20-25%

Question 22

Percentage of Monocytes

Answer 22

3-8%

Question 23

Circulatory system is made up of

Answer 23

Blood
Heart
Blood vessels

Question 24

carry HIGH oxygenated blood FROM HEART TO THE BODY

Answer 24

Arteries

Question 25

carry LOW oxygenated blood FROM BODY TO HEART

Answer 25

Veins

Question 26

Connects arteries and capillaries

Answer 26

Arterioles

Question 27

Connects Veins and Capillaries

Answer 27

Venules

Question 28

connects arterioles and venules; Transport blood, nutrients, and oxygen

Answer 28

Capillaries

Question 29

Single layer of cell, lines up blood vessel SITE OF COLLAGEN FORMATION

Answer 29

Endothelium

Question 30

Functions of Hematology Laboratory

Answer 30

- Diagnosis/ruling out of disease - Confirms clinical impressions of possible hematological disorder - Detects unsuspected disease - Monitor effect of therapy - Detects minimal residual disease

Question 31

Standard Precautions is required by

Answer 31

OSHA

Question 32

Most common site for venipuncture

Answer 32

Superficial veins of ANTECUBITAL FOSSA

Question 33

Blood collection method used for newborn, pediatric, geriatic

Answer 33

Skin puncture

Question 34

Under 1 year of age site of skin puncture

Answer 34

lateral/medial PLANTAR surface of heel

Question 35

Children >1 year of age

Answer 35

Palmar surface distal position, 3rd/4th digits

Question 36

Difference of Capillary blood and venous blood

Answer 36

Capillary blood has more Glucose (10-20 mg/dL) and leukocytes (1000 uL) but less RBC, hemoglobin, and Platelets than venous. RBC in Capillary is more fragile

Question 37

3 categories of blood cells

Answer 37

Red blood cell White Blood cell Platelets

Question 38

Size of RBC

Answer 38

6-8 um with 1/3 central pallor

Question 39

Anucleate, biconcave, discoid

Answer 39

RBC

Question 40

Insufficient amount of blood volume

Answer 40

Anemia

Question 41

Increase amount of RBC in the body

Answer 41

Polycythemia vera

Question 42

Cells that protect host from infections

Answer 42

WBC

Question 43

Decreased amount of WBC

Answer 43

Leukopenia

Question 44

Increased amount of WBC

Answer 44

Leukocytosis

Question 45

decreased amount of all cell

Answer 45

Leukemia

Question 46

3rd line of defense are

Answer 46

NK cells, Plasma, Macrophage

Question 47

cells that maintains the intergrity of blood vessel

Answer 47

Platelets

Question 48

Accumulation of aggregation

Answer 48

White thrombus