Home
HelpTest Code LA CSF; LA LACTIC ACID
Aliasis
Lactate
Patient Preparation
Lactate levels increase rapidly with exercise. Time required to return to normal lactate values depends on the physical fitness of the subject. Thirty (30) minutes at rest is usually sufficient.
Special Collection Instructions
- Blood should be drawn from a stasis-free vein (minimal hemostasis < 30 seconds will not impact levels) and store it in an ice bath.
- Avoid turniquet use if possible. Deliver to lab immediately.
- Centrifuge within 15 minutes of collection. If testing or transport delays longer than 15 minutes occur, separate plasma from cells and store according to specimen stability.
Collection Method
Venous and CSF
Minimum Volume
1 mL
Container
Grey Top / Sodium Fluoride Potassium Oxalate
Sterile CSF Tube
Preferred Specimen
Grey top / Sodium Fluoride
Acceptable Specimen(s)
Plasma:
-Grey
-Light Green
-Lavender
Sterile CSF tube
Reference or Target Ranges
|
Plasma (Adults) |
0.5 – 2.20 mmol/L |
|
CSF (Adults) |
0.60 – 2.20 mmol/L |
Reportable Units
mmol/L
Critical Value
|
Plasma |
>4.0 mmol/L |
|
CSF |
>4.0 mmol/L |
Reasons for Rejection
|
Hemolysis Threshold: |
300-1000 mg/dL |
|
Icterus Threshold: |
5.18 – 9.2 mg/dL (unconjugated) |
|
|
3.75 – 7.5 gm/dL (conjugated) |
|
Lipemia Threshold: |
1000 mg/dL |
|
Other: |
QNS, contaminated, improperly labeled, improper specimen type Not received within 15 minutes of collection |
Specimen Stability
|
Plasma |
|
|
Refrigerated |
1 Day |
|
Frozen |
30 Days |
|
CSF |
|
|
Refrigerated |
24 Hours |
|
Frozen |
1 Month |
Performance Information
|
Days and Time Performed |
24/7 |
|
Expected Turn Around Time |
Stat: 1 Hour, Routine: 4 Hours |
|
Stat Availability |
Yes |
|
Performing Bench |
CRMC Chemistry |
|
Methodology/Method Description |
Atellica |
Methodology/Method Description
Atellica CH Analyzer
CPT Codes
86305