What Does Positive Rheumatoid Factor And Elevated ESR Mean?
Erythrocyte sedimentation rate; Sed rate; Sedimentation rate
Normal Values
Adults (Westergren method):
- Men under 50 years old: less than 15 mm/hr
- Men over 50 years old: less than 20 mm/hr
- Women under 50 years old: less than 20 mm/hr
- Women over 50 years old: less than 30 mm/hr
Children (Westergren method):
- Newborn: 0 to 2 mm/hr
- Neonatal to puberty: 3 to 13 mm/hr
Note: mm/hr. = millimeters per hour
What abnormal results mean
An increased ESR rate may be due to:
Anemia - Endocarditis
Kidney disease
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