Test Name

MCH

Test Code

106

Unit

pg

Station

Hematology

Synonym Name/Abbreviation

Mean corpuscular hemoglobin, RBC
indices

Performing Facility

American Medical Labs, Herzliya
Pituah

Analyzer

Siemens Advia 2120 or 120

Test Method

Automated Cell Counter

AML Preferred Tube

3 mL EDTA whole blood

Storage Instructions

Room temperature up to 4h. Stored and transported
refrigerated up to 24 h.

Min. Volume

1 mL

Comments

Gently Invert tube 8-10 times after venipuncture to ensure
smooth mixing with anti-coagulant

Turn-Around-Time

One day

Intended Use

Part of the Blood Count, MCH is the average mass of
hemoglobin per red blood cell in a sample of
blood.

Limitations

Diminished (“hypochromic”) in microcytic anemias, clotted
sample; hemolysis; tube not filled to correct
volume.

Patient Preparation

No patient preparation.

Reasons for Rejection

Clotted sample, improper tube, incorrect volume, incorrect
labeling, dilution of blood with I.V. fluid, samples older than 24
hours.

Adult Reference Ranges

27.0 to 31.0 pg