Erythrocyte Sedimentation Rate (ESR)

Clinical interpretation, age-adjusted reference ranges, and inflammatory disease monitoring for Erythrocyte Sedimentation Rate (ESR).

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Quick Reference Facts

Specimen TypeVenous Blood (Serum)
PreparationFasting optional unless ordered with lipid panel
Turnaround Time24–48 Hours
Clinical CategoryHematology

Laboratory Interpretation Workflow

Stage 1 of 5

1. Clinical Indication

Ordering protocols based on clinical indications, presenting symptoms, or screening guidelines.

Clinical Pearl: Order when screening for primary organ dysfunctions or monitoring active treatment efficacy.

Test Description & Overview

Erythrocyte sedimentation rate (ESR, a blood test that detects inflammation) (ESR): An indirect quantitative laboratory measurement of systemic acute-phase inflammation, determining the distance in millimeters that red blood cells settle in uncoagulated anticoagulated blood in one hour.

Standard Reference Range

Men <50 yrs: <15 mm/hr; Men >50 yrs: <20 mm/hr; Women <50 yrs: <20 mm/hr; Women >50 yrs: <30 mm/hr.

Elevated (High) Values

  • Marked Elevation (>100 mm/mm): Temporal Arteritis (Giant Cell Arteritis), Polymyalgia Rheumatica
  • Multiple Myeloma, Systemic Necrotizing Vasculitis, Metastatic Malignancy
  • Acute Bacterial Infections (Osteomyelitis, Endocarditis), Rheumatoid Arthritis, SLE

Decreased (Low) Values

  • Polycythemia Vera, Sickle Cell Anemia (Altered Red Cell Morphology)
  • Extreme Leukocytosis, Congestive Heart Failure, Hypofibrinogenemia

Clinical Alignment & Significance

Extreme ESR elevation (>100 mm/hr) in an elderly patient with new headache or jaw claudication strongly indicates Temporal Arteritis, demanding immediate high-dose glucocorticoid therapy to prevent permanent blindness.

Diagnostic Guidance Notice

Standard laboratory reference ranges vary based on the testing facility. Significant deviations require immediate clinician review to rule out severe medical pathology.

Reference Citations & Evidence Sources

Materia Medica & Keynotes
  • CIT-0004Hahnemann S.. "Materia Medica Pura." Adolph Arnold (1811).
Clinical Reviews & Textbooks
  • CIT-0023National Center for Complementary and Integrative Health. "Homeopathy: What You Need To Know." National Institutes of Health (2021).

AI & Generative Search Citation Block

Entity IDL0003
Entity Typelab-test
Content Versionv1.1.0
Last Reviewed DateJul 31, 2026
Evidence LevelTraditional-Literature
Suggested Academic/LLM Citation format (AMA Style)

Dr. Narayan Jethwani. "Erythrocyte Sedimentation Rate (ESR)." Homeo Healthcare Clinical Platform. Version 1.1.0. Reviewed: 2026-07-31T20:30:00Z. Available at: https://homeo.healthcare/knowledge/lab-tests/esr

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