Hematology Basics

Question 1

Name five types of leukocytes

Answer 1

Neutrophils basophils eosoniphils monocytes lymphocytes

Question 2

What are the preferred specimens for hematology tests

Answer 2

Capillary and venous blood

Question 3

Explain safety precautions that must be observed in the hematology laboratory

Answer 3

Bench too acrylic safety shields or face shields
Gloves and fluid resistant lab coat
Safety needles
Needs placed in sharps container

Question 4

Name the tests that make up the CBC

Answer 4

RBC blood count 
Wbc blood count
Hemoglobin
Hematocrit 
Red blood cell indices 
Wbc differential count 
Platelet count or estimate 
Evaluation of cell morphology

Question 5

Explain how quality control in hematology differs from qc in other labs

Answer 5

Stable standards aren’t as widely available because they’re living tissues

Question 6

List the reference ranges for corresponding age groups for RBC counts

Answer 6

Adult male 4.5-6.0x10(6 or 12)
Female 4.0-5.5
Newborn 5.0-6.3

Question 7

List the reference ranges for corresponding age groups for WBC counts

Answer 7

Newborn - 9000-30000
One year - 6000-14000
Six years - 4500-12000
Adult - 4500-11000

Question 8

Condition associated with an increased RBC count and a decreased count

Answer 8

Anemia decreased

Erthyrocytosis increased

Question 9

Name a condition that causes leukocytosis and leukopenia

Answer 9

Cytosis - leukemia

Cytopenia - chemotherapy drugs

Question 10

Discuss the function of platelets

Answer 10

They help stop bleeding by forming a plug in injured or damaged vessel walls and real ease chemicals and enzymes

Question 11

Name two conditions in which the platelet count may be abnormal

Answer 11

Thrombocytosis and thrombocytopenia

Question 12

Name the three types of formed elements of blood and state the function of each

Answer 12

Red blood cells - oxygen carrying
White blood cells - infection
Platelets - clotting