Category
Hematology
Sub Category
General.
Synonyms/Aliases
SED Rate
Abbreviations
ESR
Type
Individual Test.
2 Hrs
Results ready in 2 Hours.
Method
Westergren Method.
Temp
Refrigerated (stability: 6 hours ambient; 24 hours refrigerated).
Setup
Daily
Components Parameters
N/A
Pre-analytic Considerations
N/A
Test Ordering instructions
Fill out test request form fully & legibly.
Patient preparation
N/A
Sample type
EDTA Whole Blood
Container/ preservative
EDTA (Purple Top) Vacutainer.
Sample volume
3ML
Rejection criteria
Labeling issue (unlabeled/ mislabeled); missing request form; mismatch between request form & sample details; missing age/ gender; wrong sample type; insufficient sample; clotted sample; samples >24 hours old.
Other Instructions
N/A
Reference intervals
Age & gender appropriate values are provided on the report
Clinical Utility
Non-specific test used as a marker of Inflamation and Neoplasia.
Test Limitations/ Confounders
Anemia Increases Esr; Polycythemia, Sickle Cells Reduce Esr.