Red Blood Cell Indices

This is a blood test which determines information about the size, weight, and hemoglobin (oxygen carrying protein) concentration of the red blood cells. These indices may be abnormal in a variety of different diseases and blood iron deficiencies.

PREPARATION FOR TEST

No preparation or fasting is necessary. A blood sample can be taken from your arm with a needle or from a finger stick.

NORMAL FINDINGS

  • Mean corpuscle volume (MCV)

  • Adult/elderly/child: 80-95 mm³

  • Newborn: 96-108 mm³

  • Mean corpuscular hemoglobin (MCH)

  • Adult/elderly/child: 27-31 pg

  • Newborn: 32-34 pg

  • Mean corpuscular hemoglobin concentration (MCHC)

  • Adult/elderly/child: 32-36 g/dl (or 32% to 36%)

  • Newborn: 32-33 g/dl (or 32% to 33%)

  • Red blood cell distribution width (RDW)

  • Adult: 11% to 14.5%

Ranges for normal findings may vary among different laboratories and hospitals. You should always check with your doctor after having lab work or other tests done to discuss the meaning of your test results and whether your values are considered within normal limits.

MEANING OF TEST

Your caregiver will go over the test results with you and discuss the importance and meaning of your results, as well as treatment options and the need for additional tests if necessary.

OBTAINING THE TEST RESULTS

It is your responsibility to obtain your test results. Ask the lab or department performing the test when and how you will get your results.