Collect SIX Blue Tops Only, No other acceptable containers.
Unacceptable Conditions
Clotted sample. Specimen collected in glass tube. Specimen >3 hrs old. Plasma or serum. Underfilled tube. Gross hemolysis. Frozen or refrigerated samples or samples sent through pneumatic tube. Samples sent on ice.
Collection Comments
Platelets < 60,000/L. Call 317-491-6000 or 1-800-433-0740 for draw information and to schedule courier pick up. Must be IN the Indianapolis LAB by 1 PM! Collect in SIX x 2.7 mL Blue Top plastic 3.2% sodium citrate tubes. MUST use an extra 3.2 % Blue sodium citrate tube as the discard tube. DO NOT SPIN!!!! Please submit a short patient history and a list of medications, over-the-counter and prescribed, that the patient has been receiving for the past 7-10 days. Specimen must be received by IU Coag within 3 hrs of collection. Testing available M-F, 8am-1pm. For hospital inpatients and/or clinics- Record unit call back phone number on backup form. Must be couriered or hand carried to lab. DO NOT send through pneumatic tube system.
Storage/Transport Temperature
Room Temp WB Only
Stability (from collection to initiation)
Room Temperature: 3 hours; Refrigerated: Not acceptable; Frozen: Not acceptable
Ordering Recommendations
Risto Dose Resp is helpful in differentiating Type IIB and Type IIA von Willebrand's Disease (vWD).
Performed
Monday - Friday; Days
Methodology
Optical Aggregometry
Reported
1 day
Performing Lab
Special Coag
Synonyms
589
Reference Interval
By report
CPT Codes
85576 (x6)
LOINC Codes
NAME
LOINC
Order
Risto Dose Resp
4680-5
Result
Risto Interp
4680-5
Test Code (Outreach Synonym)
589
Catalog Code
667750
Collection
Collect
Blood, Call Coag Lab for collection information
Preferred Draw Volume
16.2 mL
Minimum Draw Volume
6xFull Tubes
Other Acceptable Containers
Collect SIX Blue Tops Only, No other acceptable containers.
Unacceptable Conditions
Clotted sample. Specimen collected in glass tube. Specimen >3 hrs old. Plasma or serum. Underfilled tube. Gross hemolysis. Frozen or refrigerated samples or samples sent through pneumatic tube. Samples sent on ice.
Collection Comments
Platelets < 60,000/L. Call 317-491-6000 or 1-800-433-0740 for draw information and to schedule courier pick up. Must be IN the Indianapolis LAB by 1 PM! Collect in SIX x 2.7 mL Blue Top plastic 3.2% sodium citrate tubes. MUST use an extra 3.2 % Blue sodium citrate tube as the discard tube. DO NOT SPIN!!!! Please submit a short patient history and a list of medications, over-the-counter and prescribed, that the patient has been receiving for the past 7-10 days. Specimen must be received by IU Coag within 3 hrs of collection. Testing available M-F, 8am-1pm. For hospital inpatients and/or clinics- Record unit call back phone number on backup form. Must be couriered or hand carried to lab. DO NOT send through pneumatic tube system.
Storage/Transport Temperature
Room Temp WB Only
Stability (from collection to initiation)
Room Temperature: 3 hours; Refrigerated: Not acceptable; Frozen: Not acceptable
Ordering
Ordering Recommendations
Risto Dose Resp is helpful in differentiating Type IIB and Type IIA von Willebrand's Disease (vWD).
