HIGH DENSITY LIPOPROTEIN-LOW DENSITY LIPOPROTEIN CHOLESTERO (HDL-LDL)

LABORATORY SECTION:

• Clinical Chemistry

METHODOLOGY:

• Cholesterol esterase and oxidase
• Colorimetry

PURPOSE:

• May be used to help determine the risk of developing heart disease

PATIENT PREPARATION:

• If test is to be performed as part of lipid profile, fasting for 12-14 hours will be required.

TYPE OF SPECIMEN:

• 2-3 mL of serum (red top)

REJECTION OF SPECIMEN:

• Hemolyzed specimen
• Improperly labeled tube

RUNNING DAY:

• Everyday

Note: 11am CUT-OFF FOR COMPLETE BLOOD CHEMISTRY PATIENTS

SPECIMEN STABILITY:

• ROOM TEMPERATURE (20-24°C)

• REFRIGERATED TEMPERATURE (2-8°C)

• 5 days

• 7 days

RELEASING OF RESULTS:

• 2-3 hours after blood extraction