Hematology Reference Ranges

As reference ranges are subject to change for various reasons and may occur more frequently than this document is revised, there may, from time to time, be a discrepancy between this document and the patient report. The current and correct ranges will always be supplied on the patient report. Please defer to that value in any discrepancy.

 

Test

Reference Value

Bleeding Time

Newborn – 4 m

4 m – Adult

1.0 – 2.0 minutes

2.5 – 9.5 minutes

Closure Time

84-176 seconds (Collagen/Epinephrine)

63-111 seconds (Collagen/ADP)

CSF

WBC: 0 – 5 x 10E6/L

RBC: none seen

Cryoglobulin

Negative

 

D-Dimer

<= 0.46 mg/L FEU (ACH, FMC, PLC, RGH)
<= 0.50 mg/L FEU (ACHC, CCHC,SMCHC)

ESR

Children              

Female (>12y)

Male (>12y)

0 – 10 mm

0 – 20 mm

0 – 10 mm

Fibrinogen

1.6 – 4.1 g/L

 

Partial Thromboplastin Time (APTT)

 

25.0 - 35.0 seconds (ACH, DSC, FMC, RGH, PLC)
25.0 – 34.0 seconds (ACHC, CCHC, SMCHC, SCHC)

 

Prothrombin Time: INR

0.9 – 1.1
Please see INR Therapeutic Ranges for further information.

Reticulocyte count (x 109/L)

Infant (full term)

Adult

80 – 400

40 – 100

Stool

Occult blood

Negative

pH

7.0 – 8.0

Reducing substances

Negative

Synovial fluid

WBC: 0.0 - 0.2 x 10E9/L
RBC: none seen

For further information please see the CBC Reference Values Chart.