Item Value
Test name Modified Inhibitor Titer
Available Stat? No
Turn around times 1-5 days
In House Availability Monday-Friday 0800-1400
Performed by Parnassus Hematology
Patient Preparation Deliver samples to Hematology for processing. Freeze platelet poor plasma at -20C
Normal range < 0.25 BU
Container type 2.7 mL Blue top filled to full extent of vacuum x 2
Amount to Collect 5.4 mL blood
Collection Instructions 1. Check the expiration date on the label of the blue top vacutainer before drawing the patient

2. For blood collection in a sodium citrate blue top, the tube must be filled to above the Minimum Fill Indicator on the tube. It is crucial to wait and allow the tube to stop filling before removing it from the needle.

3. With use of a butterfly needle, draw about 1 cc using a separate blue top to remove air from tubing, discard the first tube and then draw a second blue top tube filled to the full extent of the vacuum.

4. Tubes should not be filled past the Maximum Fill dashed line by either using a syringe or removing the tube cap.

For patients with Hct's ≥ 55% please contact Hematology (415-353-1747) to obtain blue top tubes with adjusted citrate volumes in order to maintain the proper citrate to plasma ratio for coagulation studies.
Sample type Citrated plasma

If you have additional questions regarding this test, please call: 415-353-1667