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Lactate/Pyruvate Panel, Blood

Important Note

Before Collection please call the lab for appropriate collection tube.  Failure to collect with PCA tube could result in test rejection.

Additional Codes

LAB5286

Performing Laboratory

St. Louis Children's Hospital

Methodology

Enzymatic

Specimen Requirements

Specimen Type: Blood
Container/Tube  
Preferred: Perchloric acid (PCA) Vacutainer. 
Acceptable: NA 
Collection Volume: 1.0 mL
NOTE: minimum of 0.5 mL whole blood may be used but MUST call lab to get an adjusted PCA tube for reduced volume. 
Patient Preparation: Remove tourniquet from patient's arm before collecting specimen.
Sample Rejection:

Specimens collected in other than PCA tubes.
Specimens with incorrect volume of blood to PCA ratio.
Specimens that are grossly hemolyzed.
Mislabeled or unlabeled specimens. 
Special Instructions:

1. Call lab at 314-996-4522 to have PCA tube sent for collection.
2. Collect exactly 1.0 mL of whole blood in a syringe
3. Remove needle from syringe and remove top of PCA tube. Gently push blood from syringe into PCA tube. Place top back on PCA tube and mix tube vigorously to fully deproteinize the sample.
4. Forward to lab promptly.

Day(s) Test Set Up

Day(s) Test Set Up: Monday-Sunday
Cut-off time: 13:00
Turnaround Time: Same day if received before cut-off time; next day if received after 1:00 p.m.
Lab Testing Section: Chemistry

Reference Values

Reference Range:

Lactate:
  0.5-2.0 mmol/L
Pyruvate:
  0.03-0.10 mmol/L
 
Critical Values:

Lactate:
Critical value (automatic callback): >8.0 mmol/L

Test Classification and CPT Coding

83605: Lactate
84210: Pyruvate

Stability

Analyte Stability:

  LACTATE PYRUVATE
Ambient: NA NA
Refrigerated 8 days (supernatant) 2 days (supernatant)
Frozen NA DO NOT freeze