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Test Code Billings Clinic: 4733 LDL (Low-Density Lipoprotein) Cholesterol, Plasma

Additional Codes

Ordering Mnemonic
MayoAccess: BCL448

Performing Laboratory

Billings Clinic Laboratory:  Chemistry

Useful For

An important clinical predictor of coronary atherosclerosis.

Methodology

Liquid Selective Detergent / bichromatic endpoint

 

Specimen Requirements

  • Draw blood in a green-top (lithium heparin) tube(s) from a fasting patient.
  • Spin down and send 1 mL of heparinized plasma frozen in plastic vial.

Storage/Stability

Specimen Type Temperature Time
Plasma Refrigerated 3 days
  Frozen (preferred) 3 months

 

Reject Due To

  • Gross icterus
  • Gross lipemia

Reference Values

LDL Goal Values are based on the individual's risk category.

Risk Category

CHD and CHD risk equivalents: LDL Goal <100

Multiple (2+) risk factors: LDL Goal <130

0-1 Risk factors: LDL Goal <160

 

Based on Adult Treatment Panel III for high risk patients with 2 or more risk factors:

Optimal: <100

Near or above optimal: 100-129

Borderline high: 130-159

High: 160-189

Very high: >/= 190

Day(s) Test Set Up

Daily

Test Classification and CPT Coding

83721 - Lipoprotein, direct measurement; LDL Cholesterol

 

LCD or NCD test:  ICD-9 code is required for this test. When appropriate, obtain a properly executed ABN and submit the ABN with test order(s). See “Medical Necessity and Advanced Beneficiary Notice (ABN) Policy and Form” under “Resources" for a copy of a form and additional information.

LOINC Code Information

Reporting Name LOINC Code
LDL 18262-6