Home
HelpTest ID BLOD1015 Mixing Studies
Specimen Type/Requirements
Blue top (Sodium Citrate) tube - Plasma, Double Spun Platelet Poor (preferred)
See Coagulation Testing and Platelet Poor Plasma Preparation
Blue top (Sodium Citrate) tube - Whole Blood (Stable 4 hours Room Temperature)
The 3.2% Sodium Citrate tube must be filled to appropriate volume to acquire the 9:1 blood to anticoagulant ratio that is critical for valid results.
Test is affected by hemolysis. Test is not affected by lipemia.
Specimen Volume
| Preferred Volume | 4 separate - 1.0 mL aliquots |
|---|---|
| Minimum Volume | 2 separate - 1.0 mL aliquots |
Stability/Transport
| Room Temperature | 4 hours | |
|---|---|---|
| Refrigerated | Not Acceptable | |
| Frozen | 1 month | Preferred for transport |
Plasma must be tested within 4 hours or freeze a minimum of two 1.0 mL platelet poor aliquots.
Performed Test Frequency
Monday through Friday
Additional Information
Testing includes Protime, APTT and an Interpretation. Extended
Mixing Study will be performed if
significantly abnormal and would include a Thrombin Time.
Methodology
Mechanical
Performing Lab
Sanford Laboratories Sioux Falls
CPT
85730, 85610, 85670