Values - hematology

Question 1

Hemoglobin (HGB)

Answer 1

F: 120 - 165 g/l
M: 135 - 170 g/l

Question 2

MCV

Answer 2

80-95 fl or μm3

MCV = hematocrit/RBC count
<80 - microcytic (iron def, anemia of chronic disease, thalassemias, sideroblastic anemia)
80-100 - normocytic
>100 - macrocytic (folate def, vit B12 def)

Question 3

Hematocrit (PCV)

Answer 3

F: 0.37 - 0.47 l/l
M: 0.40 - 0.54 l/l

Question 4

Mean corposcular hemoglobin (MCH)

• gr
• concentration (MCHC)

Answer 4

28-33 pg

320-360g/l

Question 5

Erythrocyte sedimentation rate (ESR, Westergren)

Answer 5

<20 mm/h

Question 6

Reticulocyte count (relative to RBC)

Answer 6

0. 5-2.0%

corrected: more is made to correct for missed hemoglobin

Question 7

Blood cell count

• RBC
• Platelet count (PLT)
• White blood cells (WBC)

Answer 7

RBC:

• F: 3.8-5.2,
• M: 4.4-5.5 T/l

PLT: 150 - 400 G/l
WBC: 4 - 10 G/l

Question 8

Neutrophil count

• juvenile (metamyelocyte)
• band
• segment

Answer 8

juvenile: 0-1%
band: 3-5%
segment: 50-70%

Question 9

Basophil
Eosinophil
Monocyte

Answer 9

B: 0-1%
E: 2-4%
M: 2-6%

Question 10

Lymphocyte

Answer 10

20-40%

Question 11

Bleeding time

Answer 11

4-6min

Question 12

Prothrombin time (PT, INR)
(Extrinsic pathway)

aPTT (activated partial thromboplastin time)
(Intrinsic pathway)

Thrombin time

Answer 12

PT: 0.8-1.2
(INR=international normalized ratio. Reference time is 12-13s)

aPTT: 35-45 s

TT: 20-22s

Question 13

Fibrinogen

Answer 13

1.5 - 4.0 g/l