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Cholesterol, LDL, Direct

Mnemonic

LDLCD

Synonym

LDL - Low Density Lipoprotein - Direct LDL - LDL Cholesterol

Specimen Collection Requirements

Patient Preparation

Fasting is not required.

Collect

Serum or Plasma, one 5.0 mL gold (SST), 7.0 mL red or 3.0 mL mint green (PST) top tube

View image for Supply Item Number - 101235 or 101192

Handling

Allow serum to clot completely at room temperature (minimum: SST - 30 minutes and red top tubes - 60 minutes). Separate serum or plasma from cells within three hours of collection. If samples are frozen, they should be thawed only once.

Preferred Volume

1.0 mL serum or plasma

Minimum Volume

0.25 mL serum or plasma (0.6 mL minimum whole blood draw)

Transport

Refrigerated (2-8° C)

Rejection Criteria

Grossly hemolyzed specimens

Stability

AFTER SEPARATION FROM CELLS: Room Temperature (18-26°C): 8 hours; Refrigerated (2-8°C): 5 days; Frozen (≤-20°C): 3 months

Testing Information

Performed

Mon - Fri

Reported

7 days/week

Method

Detergent Solubilization, Enzymatic

Reference Values

Reference Values

CPT Codes

83721

Last Updated: Wednesday, January 13, 2021 02:09:27 AM


Client Services: 503-413-1234