Lactate Dehydrogenase

Sunquest Code:LDH  
Epic Code:LAB5891Epic Name:Lactate Dehydrogenase
Methodology:Bichromatic rate
St John/St Joseph/ Woodwinds: Lactate to pyruvate
Turnaround Time:Performed and reported 24 hours/day.
Special Instructions:Room temperature sample must be analyzed within 24 hours of collection. UMMC-East Bank Only: Add-ons are acceptable within 4 hours of collection if on the automation line and/or refrigerated. Room temperature specimens are acceptable up to 24 hours.

Collection Instructions

Optimal Volume:2.5 mL
Minimum\Peds Volume:0.6 mL
Container:Green (lithium heparin, gel), St Johns/St Joseph/Woodwinds - Red (no gel)
[Alternate Containers: Green (lithium heparin, no gel), Red (no gel), Red or gold (gel), St Johns/St Joseph/Woodwinds-Green (lithium heparin, no gel)]
Causes for Rejection:Hemolyzed or refrigerated specimens. Specimens greater than 24 hours old.

Processing and Shipping

Specimen Processing:Centrifuge and aliquot 1.25 mL, 0.2 mL minimum. Store at room temperature. Analyze within 24 hours of collection.
Shipping Instructions:Ship at room temperature.
Stability:24 hours at room temperature.
Test Performed at or Referral Lab Chemistry  (M Health Maple Grove Clinic, Range, UMMC-East Bank, Oxboro Bloom, Lakes, Ridges, Northland, Southdale, UMMC/UMMCH-West Bank, Clinics, M Health Clinic and Surgery Center, Grand Itasca, St. Joseph's, St. John's, Woodwinds)


Reference Range:
Grand Itasca (all ages, M/F): 140-271 U/L

St Johns/St Joseph/Woodwinds:
Age Female/Male
0-30 d 135-750 U/L
1 mo - 1 y 180-435 U/L
13 mo - 3 y 160-370 U/L
4-6 y 145-345 U/L
7-9 y 143-290 U/L
10-12 y 120-293 U/L
13-15 y 110-283 U/L
16-17 y 105-233 U/L
18 y & older 125-220 U/L

  All other sites:
Age Female Male
0 - 14 d 0-1255 U/L 0-1255 U/L
15 - 364 d 0-470 U/L 0-470 U/L
1 - 9 y 0-337 U/L 0-337 U/L
10 - 14 y 0-287 U/L 0-298 U/L
15 - 18 y 0-265 U/L 0-265 U/L
19 y and older 81-234 U/L 85-227 U/L

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