Results depend on several factors: the time of day the sample is submitted, the number of samples submitted, and the test requested. Most hematology and chemistry testing results are available within 24-48 hours. Serology, microbiology, parasitology and send-out tests have variable turnaround times. Please contact the Diagnostic Lab for more information.
The results are sent to the PI listed on the request form. If you filled in the area of the request form that asks if you want a copy of the results, the results will also be sent to you. If you did not include this information on the request form, you can call or email the diagnostic lab and we will be happy to email or fax them to you.
Please contact Roberta Moorhead for help with data interpretation. Please also note that we are currently in the process of developing new hematology reference intervals, including strain/background-specific reference intervals for the more common inbred mouse strains.
Hemolysis of samples can sometimes be avoided by removing the needle (if possible) from the syringe prior to expelling the blood in the collection tube. In other cases, hemolysis arises from a difficult blood collection. Clotting of anticoagulated samples is a common problem in mouse blood collection and in most instances is due to either difficult blood collection and/or inadequate anticoagulation of the sample.
For rodent whole blood collection, you may need to “rinse” your syringe and needle with concentrated anticoagulant to additionally prevent clotting. To do this, draw up the anticoagulant into the syringe, then expel all volume (a small amount will remain in the hub of the needle). A concentrated EDTA solution is recommended for blood collected for hematology only. Heparin can be used instead if blood is collected for both hematology and chemistry analysis. After drawing blood, expel it immediately into collection tube(s). Thoroughly mix all blood put in anticoagulant collection tubes by inverting tube 5 times or until blood is completely mixed. Red topped tubes or empty tubes should be kept upright during clot formation (about 30 minutes) to facilitate serum removal.