Chap 1

Question 1

Hematology

Answer 1

the study of RBCs, WBCs, and PLTs (the blood cells).

Question 2

Functions of the Hemo Lab:

Answer 2

Confirm a physician’s clinical impression of a possible hematological disorder
Establish a diagnosis or rule out a diagnosis
Detect an unsuspected disorder
Monitor the effects of radiation or chemotherapy

Question 3

Hemostasis

Answer 3

a series of cellular and plasma-based mechanisms that seal wounds, repair vessel walls, and maintain vascular patency (unimpeded blood flow), mainly PLTs.

Question 4

Hematopoiesis

Answer 4

the continuous, regulated process of renewal, proliferation, differentiation, and maturation of all blood cell lines.

Question 5

3 formed elements in blood:

Answer 5

RBCs, WBCs, PLTs

Question 6

Blood Functions:

Answer 6

• Transport Medium
• Removes
  Waste/Waste
  products
  *Cellular Defense
• Prevents blood loss

Question 7

Plasma

Answer 7

55% of a centrifuged specimen.
Composition:
Water (92%)
Soulutes (8%)
Albumin, Globulins,
Fibrinogen, Others( Electrolytes, Hormones, Vitamins, Lipids, Salts, Enzymes, and Carbs).

Question 8

Plasma Functions:

Answer 8

• Transport Medium for nutrients and metabolites.
• Immune Defense.
  *Coag

Question 9

Serum

Answer 9

Fluid portion of the blood that remains after the blood has clotted; blood cells, coag factors, and coag control proteins, consumed in clot formation, essentially absent. Clear liquid of WBCs and PLTs (buffy coat). 1%

Question 10

RBC Mass

Answer 10

the RBCs fall to the bottom of a centrifuged specimen.
44% of blood.

Question 11

Whole Blood

Answer 11

The blood specimen with no components removed.

Question 12

Coagulation’s preferred specimen

Answer 12

*Fresh plasma would be ideal.
*Volume Reqs may necessitate use of frozen or preserved pooled plasma, preserved aliquots from proficiency agencies, or QC materials.

Question 13

Hematology’s preferred specimen

Answer 13

PT anticoagulated whole blood or preserved QC materials.

Question 14

WBC Reference Ranges

Answer 14

To the nearest tenth in decimal form (7.7x10^3/uL).
To the nearest hundredth if no decimal
(7,700).

Question 15

Adult WBC

Answer 15

3.6-11.0x10^3/ uL

Question 16

Newborn WBC Range

Answer 16

9.0-37.0x10^3/uL

Question 17

Infant(6-11months) WBC range

Answer 17

6.0-18.0x10^3/uL

Question 18

Children(8-13yrs) WBC range

Answer 18

4.5-13.5x10/^3uL

Question 19

RBC Reference Ranges

Answer 19

Reported to nearest hundredth

Question 20

Adult Male RBC Range

Answer 20

4.20-6.00x10^6/uL

Question 21

Adult Female RBC Range

Answer 21

3.8-5.2x10^6/uL

Question 22

Newborns RBC Range

Answer 22

4.10-6.10x10^6/uL

Question 23

Infant (6-11months) RBC Range

Answer 23

3.60-5.20x10^6/uL

Question 24

Children(8-13yrs) RBC Range

Answer 24

4.00-5.40x10^6/uL

Question 25

Hemoglobin (Hb or Hgb) Reference Ranges

Answer 25

Report to the tenth (12.4g/dL)

Question 26

Males Hgb Range

Answer 26

13.5-18.0g/dL

Question 27

Females Hgb Range

Answer 27

12.0-15.0g/dL

Question 28

Newborns Hgb Range

Answer 28

16.5-21.5g/dL

Question 29

Infants(6-11months) Hgb Range

Answer 29

10.4-15.6g/dL

Question 30

Children(8-13yrs) Hgb Range

Answer 30

12.0-15.0g/dL

Question 31

Hematocrit (Hct)

Answer 31

Reported to the tenth

Question 32

Males Hct Range

Answer 32

40.0-54.0%

Question 33

Females Hct Range

Answer 33

35-49%

Question 34

Newborns Hct Range

Answer 34

48.0-68.0%

Question 35

Children(6mon-13yrs) Hct Range

Answer 35

35.0-49.0%

Question 36

CBC

Answer 36

Complete Blood Count

Question 37

CBC quatifies

Answer 37

WBCs, RBCs, Hgb, Hct, PLTs, calculates RBC indices.

Question 38

CBC W/ Differential

Answer 38

Quantifies the blood, but also differentiates WBCs and their #s, RBC Morph, and PLTs