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23146 Lactate, Arterial

Lactate, Arterial
Test Code: LACT-A
Synonyms/Keywords
​​Lactic Acid (arterial), L-Lactate, LA​
Useful For
Measurements of lactic acid are useful in the diagnosis and treatment of lactic acidosis (abnormally high acidity of the blood). ​
Specimen Requirements
Fasting Required Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)		 Pediatric Minimum Volume
(no repeat)
No​ Plasma​ Gray Top Tube (GYTT)​ ​ 1 mL​ 0.3 mL​ ​
​No

Park Falls only:

​Whole Blood

Park Falls only:​

Sodium-heparin Green Top or Lithium Heparin (GTT)

 ​ ​4 mL ​1 mL ​
Collection Processing Instructions
Marshfield and other centers: Collect Gray Top tube and transport to lab promptly after collection.
Centrifuge and remove plasma from the cells within 60 minutes.
Specimen must be drawn WITHOUT a tourniquet and WITHOUT hand clenching.​
 
Park Falls: Collect Sodium-heparin Green Top or Lithium Heparin (GTT) and transport to lab promptly after collection.
Specimen must be drawn WITHOUT a tourniquet and WITHOUT hand clenching.​
Specimen Stability Information
Specimen Type Temperature Time
Plasma​ ​ ​ Ambient​ 2 hours​
Refrigerate​ 48 hours​
Frozen​ >48 hours​
​Whole Blood ​Ambient ​15 minutes
Rejection Criteria
​Significant icterus
Heparinized plasma samples not transported cold ​
Interference
​Heparinized plasma samples not transported cold should be rejected as this will falsely elevate result.
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Weston​ ​Monday through Sunday​ ​Less than 2 hours​ ​Photometric Biochromatic Endpoint/Siemens Dimension
​Eau Claire​Monday through Sunday​​​Less than 2 hours​​​Photometric Biochromatic Endpoint/Siemens Dimension
​Park Falls
 ​Monday through Sunday​ ​Less than 2 hours​ ​Co-oximeter Multi-wavelength Spectrophotometry/Gem 4000
​Ladysmith​Monday through Sunday​​​Less than 2 hours​​​Photometric Biochromatic Endpoint/Siemens Dimension
​Lakeview Medical Center​Monday through Sunday​​​Less than 2 hours​​​Photometric Biochromatic Endpoint/Siemens Dimension
Marshfield​ Monday through Sunday​ Less than 2 hours​ Enzymatic Fixed Assay/Beckman AU
​Minocqua​Monday through Sunday​Less than 2 hours​Photometric Biochromatic Endpoint/Siemens Dimension
​Neillsville​Monday through Sunday​​Less than 2 hours​​Photometric Biochromatic Endpoint/Siemens Dimension
Reference Range Information
Performing Location Reference Range
All Performing Sites 0-1.6 mmoL/L​
Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
83605 ​ ​ ​ ​ ​
Synonyms/Keywords
​​Lactic Acid (arterial), L-Lactate, LA​
Ordering Applications
Ordering Application Description
​Centricity ​Lactate, Arterial
​Cerner ​None
If the ordering application you are looking for is not listed, contact your local laboratory for assistance.
Specimen Requirements
Fasting Required Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)		 Pediatric Minimum Volume
(no repeat)
No​ Plasma​ Gray Top Tube (GYTT)​ ​ 1 mL​ 0.3 mL​ ​
​No

Park Falls only:

​Whole Blood

Park Falls only:​

Sodium-heparin Green Top or Lithium Heparin (GTT)

 ​ ​4 mL ​1 mL ​
Collection Processing
Marshfield and other centers: Collect Gray Top tube and transport to lab promptly after collection.
Centrifuge and remove plasma from the cells within 60 minutes.
Specimen must be drawn WITHOUT a tourniquet and WITHOUT hand clenching.​
 
Park Falls: Collect Sodium-heparin Green Top or Lithium Heparin (GTT) and transport to lab promptly after collection.
Specimen must be drawn WITHOUT a tourniquet and WITHOUT hand clenching.​
Specimen Stability Information
Specimen Type Temperature Time
Plasma​ ​ ​ Ambient​ 2 hours​
Refrigerate​ 48 hours​
Frozen​ >48 hours​
​Whole Blood ​Ambient ​15 minutes
Rejection Criteria
​Significant icterus
Heparinized plasma samples not transported cold ​
Interference
​Heparinized plasma samples not transported cold should be rejected as this will falsely elevate result.
Useful For
Measurements of lactic acid are useful in the diagnosis and treatment of lactic acidosis (abnormally high acidity of the blood). ​
Reference Range Information
Performing Location Reference Range
All Performing Sites 0-1.6 mmoL/L​
For more information visit:
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Weston​ ​Monday through Sunday​ ​Less than 2 hours​ ​Photometric Biochromatic Endpoint/Siemens Dimension
​Eau Claire​Monday through Sunday​​​Less than 2 hours​​​Photometric Biochromatic Endpoint/Siemens Dimension
​Park Falls
 ​Monday through Sunday​ ​Less than 2 hours​ ​Co-oximeter Multi-wavelength Spectrophotometry/Gem 4000
​Ladysmith​Monday through Sunday​​​Less than 2 hours​​​Photometric Biochromatic Endpoint/Siemens Dimension
​Lakeview Medical Center​Monday through Sunday​​​Less than 2 hours​​​Photometric Biochromatic Endpoint/Siemens Dimension
Marshfield​ Monday through Sunday​ Less than 2 hours​ Enzymatic Fixed Assay/Beckman AU
​Minocqua​Monday through Sunday​Less than 2 hours​Photometric Biochromatic Endpoint/Siemens Dimension
​Neillsville​Monday through Sunday​​Less than 2 hours​​Photometric Biochromatic Endpoint/Siemens Dimension
For billing questions, see Contacts
Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
83605 ​ ​ ​ ​ ​
For most current information refer to the Marshfield Laboratory online reference manual.