Blood centrifuge to detect red blood cell ratio method

1. The heparinized capillary mouth (away from the red line end) is contacted with the blood drop flowing from the finger end, and the length of the blood is taken up to be 10 mm from the red line, and then the left and right sides are moved to the capillary to recirculate the blood for 4 to 5 times, and then rubbed back and forth several times. The blood is thoroughly mixed with heparin.

2. Wipe off the blood outside the tube, press the opening on the tube with the finger end, and insert the end with the gap horizontally into the seal. The seal depth is about 3mm.

3. The sealed capillary is placed in the flat plate of the high-speed centrifuge, and the sealing end is outward, so that the tube end is in contact with the inner rubber band of the flat plate, so as to prevent the broken tube from breaking or the sealing mud falling off during centrifugation, resulting in the loss of the fun liquid.

4. The rotor cover was fixed at 12,000 rpm for 5 minutes. (H-1650 high speed centrifuge)

5. Draw the Hct value on the reader: Place the capillary in the reader slide slot, align the bottom of the red blood cell column with the horizontal 0 line, and move the slide so that the top of the plasma column is aligned with the diagonal line marked 1.00 on the upper part of the reader. The value marked by the diagonal line at the top of the red blood cell column is the Hct value (the line of sight should be perpendicular to the line when observing to avoid deviation.