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Red cell Indices

Item Value
Approval req'd? No
Available Stat? Yes
Test code CBC, CBCD
Test group RBC
Performed by Parnassus, Mission Bay & Mt. Zion Hematology
In House Availability Test available 24 hours per day 7 days per week
Method Calculated from Hct, Hgb and RBC
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)
Units fl, pg, g/dl
Normal range
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
Synonyms RBC indices;
Turn around times STAT 1 hour, Routine 4 hours
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 85027
Last Updated 6/27/2016 15:32:05
Entry Number 810
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