Specimen Requirements

Preferred Collection Container: 

Lavender (EDTA)

Also Acceptable Collection Container: 

Pink (K2EDTA Blood Bank)

Collection Information: 

Collect whole blood in a Lavender (EDTA).

Transport Information: 

3.0 mL blood

Minimum Sample Volume: 

1.0 mL

Remarks: 

Sample vial should be filled to minimum volume for the EDTA collection tube, with a minimum of ½ full sample tube. If collecting into pediatric tubes, a minimum of 400 µL of sample must be collected. Avoid short draws as excess EDTA in the tube may cause erroneous results. Trough collection (~1/2 hour prior to next dose) is most indicative of therapeutic levels according to the Zortress product insert.