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HelpTest Code BB Hold BB
Useful For
Provides a readily available acceptable sample in the laboratory for future testing.
Prevents delay in sample acquisition when urgent testing or blood products are needed.
Second ABO/Rh type for selection of ABO-specific red cells for transfusion.
Synonyms/Keywords
Draw and Hold, Blood Bank hold, BB hold
Specimen Requirements
| Fasting Required | Specimen Type | Preferred Container/Tube | Acceptable Container/Tube | Specimen Volume | Specimen Minimum Volume (allows for 1 repeat) |
Pediatric Minimum Volume (no repeat) |
|---|---|---|---|---|---|---|
| No | Whole Blood | 6 mL EDTA Pink Top Tube (PTT) |
Two 3 mL EDTA Lavender Top Tubes (LTT) OR 6 mL Red Top Tube (RTT) |
6 mL | 3 mL | Two 0.5 mL EDTA micro-collection tubes |
Collection/Processing Instructions
Sample is held in Transfusion Service department and no testing is performed until an order is received.
Specimen Stability Information
| Specimen Type | Temperature | Time | |
|---|---|---|---|
| Whole blood | Refrigerate | Marshfield Medical Centers | 3 days |
| Marshfield Clinic/Regional Center | 3 days | ||
| Marshfield Clinic/Regional Center (if not transfused or pregnant in last 90 days) | 30 days | ||
Rejection Criteria
| Not collected according to above protocol |
|---|
| Serum separator tubes (SST) |
| Frozen samples |
| Hemolyzed samples |
Interferences
Fresh serum, fibrin or particulate matter in the patient specimen may cause anomalous results. EDTA plasma may minimize these interferences.
Reference Range Information
| No reference range |
|---|
Marshfield Labs Performing Department
Marshfield Labs Transfusion Services
Ordering Applications
| Ordering Application | Description |
|---|---|
| COM | Draw and Hold Blood Bank Tube |