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Cholesterol

Mnemonic

CHOL

Synonym

CHOL - Serum/Plasma Cholesterol - Total Cholesterol

Specimen Collection Requirements

Patient Preparation

Fasting is preferred, but 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

Handling

Allow serum to clot completely at room temperature (minimum: SST - 30 minutes and red top tubes - 60 minutes). Preferably, separate serum or plasma from cells before transport.

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): 3 days; Refrigerated (2-8°C): 7 days; Frozen (≤-20°C): 3 months

Testing Information

Performed

7 days/week

Reported

24 hours

Method

Colorimetric

Reference Values

Reference Values

Comments

Assay interference (negative) may be observed when high concentrations of N-acetylcysteine (NAC) are present.

Venipuncture immediately after or during the administration of Metamizole (Dipyrone) may lead to falsely low results for Cholesterol. Venipuncture should be performed prior to administration of Metamizole.

CPT Codes

82465

Last Updated: Saturday, January 30, 2021 01:03:41 AM


Client Services: 503-413-1234