A HBG® Wintrobe tube is a narrow glass tube measuring 110-mm-long, with graduation from 0 to 100 mm in both ascending and descending order. This method has been succeeded by the “micro-hematocrit” method which uses a small capillary tube instead of a Wintrobe hematocrit tube.
- made of soda lime glass
- with round bottom
- with straight rim
- with double numbered scale in red / white colour
- graduation: 105 mm subdivided in 1 mm
- This is a tube of 110 mm long and with an internal bore diameter of 3mm
- The tube is closed at one end.
- This tube is graduated on both sides from 0-10 in ascending and descending order
- The tube holds approximately 1 ml of blood
What are the uses of Wintrobe tube
The uses are:-
1.Determination of Packed cell volume (PCV)
2.Determination of Erythrocyte sedimentation rate (ESR)
3.Preparation of Buffy coat smear. This smear is used to determine LE cell phenomenon and to study the abnormal cells in cases of aleukemic leukemia.