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LDL Cholesterol Test
✅ Up to date🔬 Evidence: StrongCardiology
Diğer adları: Bad cholesterol, LDL, LDL-C
⚠️
Discuss your test results with your doctor. This page is for informational purposes only and does not provide a diagnosis.
⚡ Key Facts
• Measures the amount of cholesterol carried by low-density lipoprotein (LDL) particles
• Causally linked to atherosclerosis and cardiovascular disease
• There is no single fixed "normal" — targets are determined by individual cardiovascular risk
• Part of the lipid panel
🧪 What Does This Test Measure?
The LDL cholesterol test measures the amount of cholesterol carried by low-density lipoprotein particles, which are causally linked to atherosclerosis and cardiovascular disease.
📋 Why Is It Ordered?
Ordered for cardiovascular risk assessment, planning and monitoring of lipid-lowering therapy, and dyslipidemia screening. A core component of the lipid panel.
🔧 Preparation
Current guidelines accept non-fasting lipid panels as adequate in most situations. Fasting may be preferred when triglyceride evaluation is also needed.
📊 Reference Ranges
General population classification:
Optimal: <100 mg/dL (<2.6 mmol/L)
Near optimal: 100–129 mg/dL
Borderline high: 130–159 mg/dL
High: 160–189 mg/dL
Very high: ≥190 mg/dL
⚠️ Targets are individualized based on cardiovascular risk.
⬆️ High Values
Elevated LDL cholesterol may be associated with dietary habits, genetic predisposition, hypothyroidism, nephrotic syndrome, or certain medications.
⬇️ Low Values
Low LDL cholesterol is generally considered favorable. However, very low levels in untreated individuals may be associated with malnutrition, malabsorption, or certain genetic conditions.
⚙️ What Can Affect Results?
Diet, physical activity, genetic factors, body weight, thyroid function, certain medications, and measurement method are key factors that may affect LDL cholesterol.
🔬 Evidence Summary
Strong evidence: 4 guidelines, 3 meta-analyses, 1 consensus review.
✅ Key Takeaways
💡
What you learned: LDL cholesterol is causally linked to atherosclerosis. Target values are determined by individual cardiovascular risk level; there is no single universal threshold.
⛔
An LDL cholesterol result alone cannot determine treatment decisions. Total cardiovascular risk, other lipid parameters, and clinical context are all needed.
🔬 Sources Used on This Page
8 sources · Most recent publication: 2026📋
Guideline
Expert society and guideline recommendations
4
sources
📊
Systematic review / meta-analysis
Combined analysis of multiple studies
3
sources
📖
Review
Comprehensive topic evaluation
1
source
Overall assessment: Evidence level for this topic is strong. This page is supported by 4 guidelines, 3 systematic reviews/meta-analysis, 1 review.
📝 Questions to Ask Your Doctor
Be prepared for your appointment. Add questions to your list.
Last reviewed: 3/31/2026
Next review: 6/30/2026
⚖️ Comparisons
🔗 Related Topics
🩺 Aterosklerotik kardiyovasküler hastalık🧪 HDL kolesterol🧪 Trigliserid🧪 Total kolesterol🧪 CRP (Enflamasyon belirteci)
⚖️ This page does not replace medical advice. Make treatment decisions with your doctor.
Content is based on scientific studies indexed in PubMed and current clinical guidelines.
Content is based on scientific studies indexed in PubMed and current clinical guidelines.