Veterinary Diagnostic Equipment · Generic
Wintrob Tube
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The Wintrobe tube is a specialized, calibrated glass or plastic tube used in veterinary and human medicine to measure Packed Cell Volume (PCV), Erythrocyte Sedimentation Rate (ESR), and to isolate the buffy coat for diagnostic smears. It is primarily valued for allowing two distinct hematological tests from a single blood sample.
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Specs & features.
The Wintrobe tube is a narrow, straight tube, typically 110 mm to 115 mm in length with a uniform internal bore diameter of 3.0 mm. It holds approximately 1 ml of blood. One end of the tube is flat/closed (bottom), while the other is open for filling.
No specifications have been listed.
- Dual Calibration Scale: It features a highly visible scale, usually graduated from 0 to 100 mm in both ascending and descending order. One side is used for measuring ESR, and the inverted side is used for PCV.
- Bottom-Up Filling: Blood must be introduced to the tube from the bottom up using a long-stemmed Pasteur pipette or Wintrobe pipette to prevent air bubbles.
- ESR Measurement: Blood is allowed to settle for 1 hour, and the rate at which red blood cells fall gives a non-specific measure of inflammation.
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