LDL cholesterol, direct

Alphabetical Test listing

LDL cholesterol, direct-5665

  
LDL cholesterol, direct
  
5665
  
83721.0
  
LDC
  
Direct measure LDL
  

Patient fasting prior to sample collection is recommended, but not required

Fasting for a blood test

  
Lithium heparin (Li hep) plasma
  
  
1.0 mL
  
0.2 mL
  

Immediately following collection, mix sample thoroughly by gentle inverting 8 - 10 times to prevent clotting

  

Spin

  

Lt green plasma separator (PST)

  
Serum
  
  

Immediately following collection, thoroughly mix sample by gently inverting 5 times

 

  
  1. Allow sample to clot for a minimum of 30 minutes
  2. Spin within two (2) hours of sample collection
  

Gold serum separator (SST) tube

 

  

Refrigerated - 7 days

Frozen - 12 months

  
  • Improper labels (unlabeled or mislabeled)
  • Hemolysis 
  • Improper anticoagulant or ratio
  • Delay in transport
  • Improper storage temperature affecting results
  • Improper container
  • Leaking container resulting in compromised specimen
  • Quantity not sufficient (QNS)
  
AHL - Chemistry: C
  
Daily
  
1 day
  

Homogenous enzymatic colorimetric 

  

Optimal <100 mg/dL

Near Optimal 100 – 129 mg/dL

Borderline High 130 - 159 mg/dL

High 160 - 189 mg/dL

Very High >= 190 mg/dL

  

Samples with triglyceride concentrations >1,300 mg/dL should not be used for the determination of LDL cholesterol.

  
83721
  
Yes
  
  
11/30/2001
  
05/02/2023
  
01/09/2024