Davis's Lab & Diagnostic Tests

Cholesterol, HDL and LDL

Cholesterol, HDL and LDL is a topic covered in the Davis's Lab & Diagnostic Tests.

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α1-Lipoprotein cholesterol, high-density cholesterol, HDLC, and β-lipoprotein cholesterol, low-density cholesterol, LDLC.

Common Use:
To assess risk and monitor for coronary artery disease.

Serum collected in a gold-, red-, or red/gray-top tube.

Normal Findings:
(Method: Spectrophotometry)

HDLCConventional UnitsSI Units (Conventional Units × 0.0259)
Birth6–56 mg/dL0.16–1.45 mmol/L
Children, adults, and older adults
DesirableGreater than 60 mg/dLGreater than 1.55 mmol/L
Acceptable40–60 mg/dL1–1.55 mmol/L
LowLess than 40 mg/dLLess than 1 mmol/L
LDLCConventional UnitsSI Units (Conventional Units × 0.0259)
OptimalLess than 100 mg/dLLess than 2.59 mmol/L
Near optimal100–129 mg/dL2.59–3.34 mmol/L
Borderline high130–159 mg/dL3.37–4.11 mmol/L
High160–189 mg/dL4.14–4.9 mmol/L
Very highGreater than 190 mg/dLGreater than 4.92 mmol/L
NMR LDLC Particle NumberNMR LDLC Small Particle Size
High-risk CADLess than 1,000 nmol/LLess than 528 nmol/L
Moderately high-risk CADLess than 1,300 nmol/LLess than 528 nmol/L
CAD, coronary artery disease; NMR, nuclear magnetic resonance.

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