Differential and Total WBC Count

CPT: 85004; 85048
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Test Details

Synonyms

  • Differential
  • Leukocyte/WBC Count, Peripheral Blood
  • WBC With Diff, Total and Differential
  • White Blood Cell Morphology

Test Includes

Total WBC plus relative (%) and absolute counts of all white blood cell types

Use

Determine quantitative variations in white cell numbers and types

Methodology

Automated cell counter

Specimen Requirements

Specimen

Whole blood

Volume

Tube fill capacity

Minimum Volume

0.5 mL (500 μL for pediatric microtainer capillary tubes; fill tube to capacity.)

Container

Lavender-top (EDTA) tube

Collection

Invert tube 8 to 10 times immediately after tube is filled at the time of collection.

Storage Instructions

Maintain specimen at room temperature for 24 hours; refrigerate for 48 hours.

Stability Requirements

Temperature

Period

Room temperature

1 day

Refrigerated

3 days

Frozen

Unstable

Freeze/thaw cycles

Unstable

Causes for Rejection

Hemolysis; clotted specimen; tube not filled with minimum fill volume; specimen diluted or contaminated with IV fluid; specimen drawn in any anticoagulant other than EDTA; transfer tubes with whole specimen received with plasma removed (plasma used for other testing); improper labeling; samples more than 72 hours old

LOINC® Map

Order Code Order Code Name Order Loinc Result Code Result Code Name UofM Result LOINC
015173 Differential/Total WBC Count 005025 WBC x10E3/uL 6690-2
015173 Differential/Total WBC Count 015107 Neutrophils % 770-8
015173 Differential/Total WBC Count 015123 Lymphs % 736-9
015173 Differential/Total WBC Count 015131 Monocytes % 5905-5
015173 Differential/Total WBC Count 015149 Eos % 713-8
015173 Differential/Total WBC Count 015156 Basos % 706-2
015173 Differential/Total WBC Count 115398 Immature Cells N/A
015173 Differential/Total WBC Count 015909 Neutrophils (Absolute) x10E3/uL 751-8
015173 Differential/Total WBC Count 015917 Lymphs (Absolute) x10E3/uL 731-0
015173 Differential/Total WBC Count 015925 Monocytes(Absolute) x10E3/uL 742-7
015173 Differential/Total WBC Count 015933 Eos (Absolute) x10E3/uL 711-2
015173 Differential/Total WBC Count 015941 Baso (Absolute) x10E3/uL 704-7
015173 Differential/Total WBC Count 015108 Immature Granulocytes % 38518-7
015173 Differential/Total WBC Count 015911 Immature Grans (Abs) x10E3/uL 51584-1
015173 Differential/Total WBC Count 015945 NRBC % 58413-6
015173 Differential/Total WBC Count 015180 Hematology Comments: 18314-5
Reflex Table for Immature Granulocytes
Order Code Order Name Result Code Result Name UofM Result LOINC
Reflex 1 015111 Please note: 015111 Please note: N/A
Reflex Table for Immature Grans (Abs)
Order Code Order Name Result Code Result Name UofM Result LOINC
Reflex 1 015111 Please note: 015111 Please note: N/A
Reflex Table for Hematology Comments:
Order Code Order Name Result Code Result Name UofM Result LOINC
Reflex 1 115246 Differential 115247 Neutrophils % 23761-0
Reflex Table for Hematology Comments:
Order Code Order Name Result Code Result Name UofM Result LOINC
Reflex 1 115246 Differential 115250 Lymphs % 737-7
Reflex Table for Hematology Comments:
Order Code Order Name Result Code Result Name UofM Result LOINC
Reflex 1 115246 Differential 115251 Monocytes % 744-3
Reflex Table for Hematology Comments:
Order Code Order Name Result Code Result Name UofM Result LOINC
Reflex 1 115246 Differential 115252 Eos % 714-6
Reflex Table for Hematology Comments:
Order Code Order Name Result Code Result Name UofM Result LOINC
Reflex 1 115246 Differential 115253 Basos % 707-0
Reflex Table for Hematology Comments:
Order Code Order Name Result Code Result Name UofM Result LOINC
Reflex 1 115246 Differential 115398 Immature Cells N/A
Reflex Table for Hematology Comments:
Order Code Order Name Result Code Result Name UofM Result LOINC
Reflex 1 115246 Differential 115254 Neutrophils Absolute X10E3/uL 753-4
Reflex Table for Hematology Comments:
Order Code Order Name Result Code Result Name UofM Result LOINC
Reflex 1 115246 Differential 115255 Lymphs (Absolute) X10E3/uL 732-8
Reflex Table for Hematology Comments:
Order Code Order Name Result Code Result Name UofM Result LOINC
Reflex 1 115246 Differential 115256 Monocytes(Absolute) X10E3/uL 743-5
Reflex Table for Hematology Comments:
Order Code Order Name Result Code Result Name UofM Result LOINC
Reflex 1 115246 Differential 115257 Eos (Absolute Value) X10E3/uL 712-0
Reflex Table for Hematology Comments:
Order Code Order Name Result Code Result Name UofM Result LOINC
Reflex 1 115246 Differential 115258 Baso(Absolute) X10E3/uL 705-4
Reflex Table for Hematology Comments:
Order Code Order Name Result Code Result Name UofM Result LOINC
Reflex 1 115246 Differential 115260 Differential Comment 18723-7
Reflex Table for Hematology Comments:
Order Code Order Name Result Code Result Name UofM Result LOINC
Reflex 1 115246 Differential 005034 RBC Comment 6742-1
Reflex Table for Hematology Comments:
Order Code Order Name Result Code Result Name UofM Result LOINC
Reflex 1 115246 Differential 015171 Platelet Comment 9317-9

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