Some laboratory tests are so specialized that they require the use of special collection tubes to prevent erroneous results.
Some examples of special requirements include:
|Heavy metals||Blood collection container material must be free of heavy metals|
|Tissue typing||Sample may need to be collected in preservative solution|
|Blood cultures||Specimens must be collected in bottles containing nutrient media to promote growth of bacteria within the bottle. |
|Genetic studies||Special tubes may be needed to preserve DNA and/or RNA|
It is the responsibility of the phlebotomist to be aware of special requirements for certain tests. If the correct collection tube is not known then the phlebotomist MUST
refer to the specimen collection manual or ask the appropriate laboratory worker to obtain the information. It is also imperative that the phlebotomist obtain and use only the correct equipment and not substitute something that is "close". This could affect the test results and the safety of the patient.