Hematology values

Question 1

Red blood cells (RBC)

Answer 1

4.5-5.0 million mcL

contain hemoglobin and carries oxygen throughout the body

Question 2

White blood cells (WBC)

Answer 2

4,500-11,000/μL (microliter)

4.5 to 11.0 × 10^9/L

Question 3

Platelets

Answer 3

150,000 to 400,000 μL (microliter)

< 150,000 = thrombocytopenia (bleeding)
> 400,000 = thrombocytosis (clots, stroke)

Question 4

Hemoglobin (HgB)

Answer 4

Normal 136 to 170 g/L; critical low 70g/L
Men: 13.5 to 17.5 g/dL (135 to 175 g/L)
Female: 12.0 to 15.5 g/dL (120 to 155 g/L)

Role: an iron-containing protein found in RBC that gives the cells their characteristic red colour; enables RBC to bind to oxygen

Question 5

Hematocrit

Answer 5

37-49% of the volume of blood

Role: a portion of blood that is made up of red blood cells, values expressed in percentages
- used to check for anemia

Question 6

Neutrophils

Answer 6

1,500-8,000 (1.5-8.0) neutrophils/μL

45-75%

Question 7

Lymphocytes

Answer 7

1,000- 4,800 lymphocytes/μL

20-25 %

Question 8

Monocytes

Answer 8

2 to 8 %

Question 9

Eosinophils

Answer 9

1 to 4 %

Question 10

Basophils

Answer 10

0.5 to 1%

Question 11

“Left shift”

Answer 11

A “left shift” is when there is are a high number of young, immature white blood cells present meaning there is an infection or inflammation present and the bone marrow is producing more WBCs and releasing them into the blood before they are fully mature.