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Red cell Indices (Complete View)

Item Value
Test name Red cell Indices
Test Update Information
Approval req'd? No
Available Stat? Yes
Utilization Guidelines
Test code CBC, CBCD
Test group RBC
Performed by Parnassus & Mt. Zion Hematology
Sendout?
In House Availability Test available 24 hours per day 7 days per week
Method Calculated from Hct, Hgb and RBC
Patient Preparation
Collection Instructions
Container type Lavender top
Amount to Collect 3 mL blood
Sample type EDTA whole blood
Preferred volume 3 mL blood
Min. Volume 1 mL blood (or 250 µL in a pedi-bullet)
UCSF Rejection Criteria
Processing notes
Ref Lab Rejection Criteria
Units fl, pg, g/dl
Normal range
Age MCV MCH MCHC
0-7 days 95-121 fL 31-37 pg 29-37 g/dL
1-2 weeks 88-120 fL 28-40 pg 28-38 g/dL
2-4 weeks 86-118 fL 28-40 pg 28-38 g/dL
1-2 months 85-117 fL 28-40 pg 29-37 g/dL
2-3 months 77-115 fL 26-34 pg 29-37 g/dL
3-6 months 74-108 fL 25-34 pg 30-36 g/dL
6-24 months 70-86 fL 23-31 pg 30-36 g/dL
2-6 years 75-87 fL 24-30 pg 31-36 g/dL
6-12 years 77-95 fL 25-33 pg 31-36 g/dL
12-18 years 78-98 fL 25-34 pg 31-36 g/dL
18+ years 80-100 fL 26-34 pg 31-36 g/dL
Critical value
Synonyms RBC indices;
Stability
Turn around times STAT 1 hour, Routine 4 hours
Reflex?
Additional information MCV is directly measured
MCH = Hgb x 10/RBC (in millions)
MCHC = Hgb(in g/dL) x 100/Hct

The MCV is used to determine if the red cells are normocytic, microcytic and macrocytic. The MCHC is used to determine if the red cells are normochromic, hypochromic or hyperchromic, the latter seen almost exclusively in spherocytosis. The MCH is a relatively useless parameter.
CPT coding
Medical Necessity?
LOINC code
LDT or Mod FDA?
Include for internal use?
Last Updated 11/16/2014 6:11:57 PM
Entry Number 810
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