Laboratory test results are dependent on the quality of the specimen submitted. If there is any doubt or question regarding the type of specimen that should be collected, it is imperative that the laboratory is called to clarify the order and specimen requirements.
Most laboratory tests are performed on serum, anticoagulated plasma or whole blood. Please see the individual test directory listings for specific requirements.
Plasma: Plasma: Draw a sufficient amount of blood with the indicated anticoagulant to yield the necessary plasma volume. Gently mix the blood collection tube by inverting 8-10 times immediately after collection. The majority of samples require separation of plasma from cells within two hours of collection. However, there are few tests that require separation within 15-30 minutes. Please refer to our laboratory test directory for additional information. All specimens must be delivered to the laboratory within 4 hours of collection.
Serum: Draw a sufficient amount of blood to yield the necessary serum volume. Invert tube 5-10 times to activate clotting. Allow blood to clot at room temperature for 30 minutes. NOTE: Avoid hemolysis.
Whole Blood: Draw a sufficient amount of blood with the indicated anticoagulant. Gently mix the blood collection tube by inverting 8-10 times immediately after collection. NOTE: Tubes intended for whole blood analyses are not to be centrifuged and separated.
All patient specimens must be place in biohazard bags for transport to the laboratory.
Specimen Collection Tubes
