Related Experiment Videos
Vortex mixing of feline blood to disaggregate platelet clumps
1Department of Veterinary Pathology and the Veterinary Teaching Hospital, College of Veterinary Medicine, Michigan State University, East Lansing, MI 48824, USA. korcal@pilot.msu.edu
Insights
Vortex mixing feline blood inconsistently disperses platelet clumps, leading to unreliable platelet counts. This method does not appear to be a consistent solution for erroneous feline platelet counts caused by clumping.
Area of Science:
- Veterinary Hematology
- Laboratory Medicine
Background:
- Platelet clumping is a frequent cause of inaccurate platelet counts in cats.
- Accurate platelet counts are crucial for feline health assessment and diagnosis.
Purpose of the Study:
- To evaluate vortex mixing as a method to disaggregate platelet clumps in feline blood.
- To determine if vortex mixing improves the accuracy of feline platelet counts.
Main Methods:
- Whole blood samples from cats with and without platelet clumping were analyzed.
- Samples were mixed using a standard vortex mixer for 1 minute at maximal setting.
- Platelet counts, leukocyte counts, and blood smears were assessed before and after mixing.
Main Results:
- Vortex mixing increased platelet counts in most samples with initial clumping.
- However, complete dispersion of platelet clumps was achieved in only a minority of samples.
- Vortex mixing did not significantly affect total leukocyte counts.
Conclusions:
- Vortex mixing provides inconsistent and partial improvement for feline platelet clumping.
- This method is not a reliable solution for correcting erroneous feline platelet counts due to clumping.
Abstract:
Platelet clumping is a common cause of erroneous platelet counts in cats. Mixing of blood with a vortex mixer was evaluated as a method to disaggregate platelet clumps in feline blood and thus obtain accurate platelet counts. Whole blood samples from 42 cats with platelet clumping and 10 control cats without platelet clumping were mixed for 1 minute at the maximal setting using a standard vortex mixer. Blood smears (for subjective assessment of the type and amount of platelet clumping), platelet counts, and total leukocyte counts were evaluated before and after mixing. Vortex treatment of blood samples with platelet clumps caused an increased platelet count in all but 1 sample. Although most samples had strong increases in platelet counts after mixing, only a minority of samples (5 of 42) appeared to have all platelet clumps dispersed. Of 39 feline blood samples with platelet counts initially <200X10(9) cells/L, 23 counts increased to >200X10(9) cells/L and 34 counts increased to >100X10(9) cells/L. Overall, mixing gave inconsistent and partial improvement in platelet counts. Total leukocyte counts were not significantly affected by vortex mixing. Vortex mixing of 10 feline blood samples without platelet clumping had no consistent effect on platelet or WBC counts. In conclusion, vortex mixing of feline blood does not appear to be a consistent means of correcting the problem of feline platelet clumping.