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22520 Hematocrit

Hematocrit
Test Code: HCT
Synonyms/Keywords
Packed cell volume​
Useful For
Used to detect, confirm, monitor, or rule out a wide range of hematologic disorders, or to evaluate and manage the hematologic effects of treatments (radiation, chemotherapy, medications) or other conditions (illnesses and injuries).
Specimen Requirements
 
 
 
 
 
Fasting RequiredSpecimen TypePreferred Container/TubeAcceptable Container/TubeSpecimen VolumeSpecimen Minimum Volume
(allows for 1 repeat)
Pediatric Minimum Volume
(no repeat)
No​Whole Blood​EDTA Lavender Top Tube (LTT)​EDTA Pink Top Tube (PTT)​2 mL​

One lavender top micro collection tube or 1.0 mL in    3 mL lavender​

One lavender top micro collection tube with  0.5 mL​
Collection Processing Instructions
Invert specimen at least 5-6 times in order to facilitate mixing and prevent coagulation.​
Specimen Stability Information
Specimen Type Temperature Time
Whole blood​ Ambient​ <24 hours​
Refrigerated​ <48 hours​
Refrigerated​ >48 hours may be reported with additional comments​
Rejection Criteria
Clotted
Grossly Hemolyzed​
Diluted with IV or tissue fluid​
Frozen​
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Bloomer​ ​Monday through Friday ​Less than 2 hours​

Electrical Impediance/Beckman Coulter ACT5 DIFF-CP

​Chetek ​Monday through Friday ​Less than 2 hours​ ​​Electrical Impediance/Beckman Coulter ACT5 DIFF-CP
​Chippewa Falls ​Monday through Friday ​Less than 2 hours​ ​Electrical Impediance/Beckman Coulter DXH600
​Colby/Abbotsford ​Monday through Friday ​Less than 2 hours​
Electrical Impediance/Beckman Coulter ACT5 DIFF-CP
​Cumberland ​Monday through Friday ​Less than 2 hours​ ​​Electrical Impediance/Beckman Coulter ACT5 DIFF-CP
​Diagnostic Treatment Center ​Monday through Sunday​ ​Less than 2 hours​ ​​​​Electrical Impediance/Beckman Coulter DXH600

​Eagle River

​Monday through Friday ​Less than 2 hours​ ​​Electrical Impediance/Beckman Coulter ACT5 DIFF-CP
​Eau Claire ​Monday through Sunday​ ​Less than 2 hours​ ​​Electrical Impediance/Beckman Coulter DXH600
​Flambeau Hospital ​Monday through Sunday​ ​Less than 2 hours​ ​​Electrical Impediance/Beckman Coulter DXH600
​Hayward ​Monday through Friday ​Less than 2 hours​ ​​Electrical Impediance/Beckman Coulter ACT5 DIFF-CP
​Ladysmith Medical Center ​Monday through Sunday ​Less than 2 hours​ ​​Electrical Impediance/Beckman Coulter DXH600
​Lake Hallie ​Monday through Sunday​ ​Less than 2 hours​ ​​Electrical Impediance/Beckman Coulter DXH600
​Lakeview Medical Center ​Monday through Sunday​ ​Less than 2 hours​ ​​Electrical Impediance/Beckman Coulter DXH600
Marshfield​ ​Monday through Sunday​ ​Less than 2 hours​ ​Unicel Beckman Coulter DxH800​
​Menomonie ​Monday through Friday ​Less than 2 hours​ ​​Electrical Impediance/Beckman Coulter ACT5 DIFF-CP
​Merrill ​Monday through Saturday​ ​Less than 2 hours​ ​​Electrical Impediance/Beckman Coulter DXH600
​Minocqua ​Monday through Sunday​ ​Less than 2 hours​ ​​Electrical Impediance/Beckman Coulter DXH600
​Mosinee ​Monday through Friday ​Less than 2 hours​ ​​Electrical Impediance/Beckman Coulter ACT5 DIFF-CP
​Neillsville​Monday through Sunday​​Less than 2 hours​​Electrical Impediance/Beckman Coulter DXH600
​Oakwood ​Monday through Friday ​Less than 2 hours​ ​​Electrical Impediance/Beckman Coulter ACT5 DIFF-CP
​Phillips ​Monday through Friday ​Less than 2 hours​ Electrical Impediance/Beckman Coulter ACT5 DIFF-CP
​Rhinelander ​Monday through Friday ​Less than 2 hours Electrical Impediance/Beckman Coulter ACT5 DIFF-CP
​Stettin ​Monday through Friday ​Less than 2 hours​ ​​Electrical Impediance/Beckman Coulter ACT5 DIFF-CP
​Stevens Point ​Monday through Friday ​Less than 2 hours​ ​​Electrical Impediance/Beckman Coulter DXH600
​Wausau Monday through Sunday​​ ​Less than 2 hours​ ​​Electrical Impediance/Beckman Coulter DXH600
​Wisconsin Rapids ​Monday through Friday ​Less than 2 hours​ ​​Electrical Impediance/Beckman Coulter DXH600
​Wittenberg ​Monday through Friday ​Less than 2 hours​ ​​Electrical Impediance/Beckman Coulter ACT5 DIFF-CP
Test Information
​This test is included in CBC without differential (HGMP), CBC with Automated Differential (HGMPA) or CBC with Manual Differential (HGMPM).
Reference Range Information
Performing Location Reference Range
Marshfield​ Newborn (0-30 days): 44 - 70% 
             1-23 months: 32 - 42% 
                  2-9 years: 33 - 43%
Male       10-17 years: 36 - 47%
Female   10-17 years: 35 - 45%
Male        >=18 years: 38 - 51%
Female    >=18 years: 35 - 46% ​
See Critical Value List for list of current critical values.​
Outreach CPTs
CPT Modifier
(if needed)
Quantity Description Comments
85014​
Synonyms/Keywords
Packed cell volume​
Ordering Applications
Ordering Application Description
​Centricity ​Hematocrit (HCT)
​Cerner ​Hematocrit
​COM ​Hematocrit-HCT
If the ordering application you are looking for is not listed, contact your local laboratory for assistance.
Specimen Requirements
 
 
 
 
 
Fasting RequiredSpecimen TypePreferred Container/TubeAcceptable Container/TubeSpecimen VolumeSpecimen Minimum Volume
(allows for 1 repeat)
Pediatric Minimum Volume
(no repeat)
No​Whole Blood​EDTA Lavender Top Tube (LTT)​EDTA Pink Top Tube (PTT)​2 mL​

One lavender top micro collection tube or 1.0 mL in    3 mL lavender​

One lavender top micro collection tube with  0.5 mL​
Collection Processing
Invert specimen at least 5-6 times in order to facilitate mixing and prevent coagulation.​
Specimen Stability Information
Specimen Type Temperature Time
Whole blood​ Ambient​ <24 hours​
Refrigerated​ <48 hours​
Refrigerated​ >48 hours may be reported with additional comments​
Rejection Criteria
Clotted
Grossly Hemolyzed​
Diluted with IV or tissue fluid​
Frozen​
Useful For
Used to detect, confirm, monitor, or rule out a wide range of hematologic disorders, or to evaluate and manage the hematologic effects of treatments (radiation, chemotherapy, medications) or other conditions (illnesses and injuries).
Reference Range Information
Performing Location Reference Range
Marshfield​ Newborn (0-30 days): 44 - 70% 
             1-23 months: 32 - 42% 
                  2-9 years: 33 - 43%
Male       10-17 years: 36 - 47%
Female   10-17 years: 35 - 45%
Male        >=18 years: 38 - 51%
Female    >=18 years: 35 - 46% ​
See Critical Value List for list of current critical values.​
For more information visit:
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Bloomer​ ​Monday through Friday ​Less than 2 hours​

Electrical Impediance/Beckman Coulter ACT5 DIFF-CP

​Chetek ​Monday through Friday ​Less than 2 hours​ ​​Electrical Impediance/Beckman Coulter ACT5 DIFF-CP
​Chippewa Falls ​Monday through Friday ​Less than 2 hours​ ​Electrical Impediance/Beckman Coulter DXH600
​Colby/Abbotsford ​Monday through Friday ​Less than 2 hours​
Electrical Impediance/Beckman Coulter ACT5 DIFF-CP
​Cumberland ​Monday through Friday ​Less than 2 hours​ ​​Electrical Impediance/Beckman Coulter ACT5 DIFF-CP
​Diagnostic Treatment Center ​Monday through Sunday​ ​Less than 2 hours​ ​​​​Electrical Impediance/Beckman Coulter DXH600

​Eagle River

​Monday through Friday ​Less than 2 hours​ ​​Electrical Impediance/Beckman Coulter ACT5 DIFF-CP
​Eau Claire ​Monday through Sunday​ ​Less than 2 hours​ ​​Electrical Impediance/Beckman Coulter DXH600
​Flambeau Hospital ​Monday through Sunday​ ​Less than 2 hours​ ​​Electrical Impediance/Beckman Coulter DXH600
​Hayward ​Monday through Friday ​Less than 2 hours​ ​​Electrical Impediance/Beckman Coulter ACT5 DIFF-CP
​Ladysmith Medical Center ​Monday through Sunday ​Less than 2 hours​ ​​Electrical Impediance/Beckman Coulter DXH600
​Lake Hallie ​Monday through Sunday​ ​Less than 2 hours​ ​​Electrical Impediance/Beckman Coulter DXH600
​Lakeview Medical Center ​Monday through Sunday​ ​Less than 2 hours​ ​​Electrical Impediance/Beckman Coulter DXH600
Marshfield​ ​Monday through Sunday​ ​Less than 2 hours​ ​Unicel Beckman Coulter DxH800​
​Menomonie ​Monday through Friday ​Less than 2 hours​ ​​Electrical Impediance/Beckman Coulter ACT5 DIFF-CP
​Merrill ​Monday through Saturday​ ​Less than 2 hours​ ​​Electrical Impediance/Beckman Coulter DXH600
​Minocqua ​Monday through Sunday​ ​Less than 2 hours​ ​​Electrical Impediance/Beckman Coulter DXH600
​Mosinee ​Monday through Friday ​Less than 2 hours​ ​​Electrical Impediance/Beckman Coulter ACT5 DIFF-CP
​Neillsville​Monday through Sunday​​Less than 2 hours​​Electrical Impediance/Beckman Coulter DXH600
​Oakwood ​Monday through Friday ​Less than 2 hours​ ​​Electrical Impediance/Beckman Coulter ACT5 DIFF-CP
​Phillips ​Monday through Friday ​Less than 2 hours​ Electrical Impediance/Beckman Coulter ACT5 DIFF-CP
​Rhinelander ​Monday through Friday ​Less than 2 hours Electrical Impediance/Beckman Coulter ACT5 DIFF-CP
​Stettin ​Monday through Friday ​Less than 2 hours​ ​​Electrical Impediance/Beckman Coulter ACT5 DIFF-CP
​Stevens Point ​Monday through Friday ​Less than 2 hours​ ​​Electrical Impediance/Beckman Coulter DXH600
​Wausau Monday through Sunday​​ ​Less than 2 hours​ ​​Electrical Impediance/Beckman Coulter DXH600
​Wisconsin Rapids ​Monday through Friday ​Less than 2 hours​ ​​Electrical Impediance/Beckman Coulter DXH600
​Wittenberg ​Monday through Friday ​Less than 2 hours​ ​​Electrical Impediance/Beckman Coulter ACT5 DIFF-CP
For billing questions, see Contacts
Outreach CPTs
CPT Modifier
(if needed)
Quantity Description Comments
85014​
For most current information refer to the Marshfield Laboratory online reference manual.