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Test Code LAB3090 Lactic Acid, Sepsis with Reflex

Performing Laboratory

Barnes-Jewish Hospital Laboratory

Methodology

Enzymatic (Lactate Oxidase)

 

Testing Algorithm:

When a Sepsis Lactate w/Reflex is ordered, if the result is > 2.0, a rule will fire to order an additional Lactate timed 3 hours after collection of the first sample.  If the second sample is > 2.0, a rule will fire to order an additional Lactate timed 3 hours from the second order’s collection time.  Both reflexes will be at a “Timed” status.

 

Literature Reference:

Reference manual: ABL 800 FLEX Series. Radiometer America, Bronshoj Denmark, 2009.

Specimen Requirements

Specimen Type: Whole blood

Container/Tube: Sims-Portex blood gas syringe

Specimen Volume: Full tube

Collection Instructions: Draw arterial or venous heparinized whole blood.

Additional Information: Send capped syringe (no needle attached) to the laboratory.

Day(s) Test Set Up

Monday through Sunday
Turnaround Time:
STAT: 15 minutes after receipt in laboratory
Routine: not available

Test Classification and CPT Coding

83605

Reference Values

0.7-2.0 mmol/L

Critical result (automatic call-back): ≥4.0 mmol/L

Literature Reference:

Tietz NW. Clinical guide to laboratory tests. 3rd ed. Philadelphia: WB Saunders Co., 1995;382-3.

Specimen Transport Temperature

Ambient

Additional Information

For BJH Laboratory Use Only

Do not add-on this test

Laboratory Processing Instructions:
Test performed in BJH Core Lab. Deliver to the blood gas workstation immediately.

Special Instructions

See Analyte Stability Chart under General Information for a complete list.

LOINC Code Information

Name LOINC Code
Lactic Acid, Whole Blood 32693-4