Sign in →

Test Code LDL Direct LDL (Low-Density Lipoprotein), Direct Measurement, Plasma or Serum

Performing Laboratory

NRL-Chemistry

Methodology

Timed End point

Note: This test is also available as part of #LIPID Lipid Panel or #LIPIDR Lipid Panel, Reflex to Direct LDL. See Common Panel Test Combinations in Special Instructions to avoid duplicate test requests when multiple panels are ordered.

Specimen Requirements

Submit only 1 of the following specimens:
  
Preferred:

Specimen Type: Plasma

Container/Tube: Light-green top (lithium heparin)

Specimen Volume: 1 mL

Specimen Minimum Volume: 0.5 mL

Collection Instructions:

1. Fasting (12-14 hours)

2. Patient must not consume any alcohol for 24 hours before specimen is drawn.

3. Spin down unopened (vacuum intact) tube within 45 minutes of draw.

4. Avoid hemolysis.

5. Label specimen as plasma.

 

Alternate (Non-Hospital Patient):

Specimen Type: Serum

Container/Tube: Gold top, serum gel

Specimen Volume: 1 mL

Specimen Minimum Volume: 0.5 mL

Collection Instructions:

1. Fasting (12-14 hours)

2. Patient must not consume any alcohol for 24 hours before specimen is drawn.

3. Spin down unopened (vacuum intact) tube within 45 minutes of draw.

4. Avoid hemolysis.

5. Label specimen as serum.

Reference Values

0-19 years: 50-109 mg/dL

>19 years: 60-129 mg/dL

Day(s) Test Set Up

Monday through Sunday

Turnaround Time:

Routine-shift

Specimen Transport Temperature

Refrigerate

Test Classification and CPT Coding

83721

Special Instructions