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HelpTest Code TYSC Type and Screen
Additional Codes
| EPIC | LAB4415 |
Purpose
Type and screens are performed for all patients who may be transfused to determine ABO and Rh type and the presence and identification of antibodies prior to crossmatching. All patients will be banded with the crossmatch sticker attached to an EDTA tube. Outpatients will be banded and the crossmatch sticker attached to each tube if the patient is to retrun within 3 days for a procedure (i.e. scheduled C-section) or transfusion (i.e. Outpatient Infusion Care patients).
Methodology
Hemagglutination by MTS gel card system and/or manual tube method.
Sample Type
Preferred
| Inpatient | |
|---|---|
| Pink Top* | |
| Outpatient | |
|---|---|
|
|
Pink top and Red top |
Acceptable
| Inpatient | |
|---|---|
| Lavender Top* | |
Centrifuge: Yes (In Blood Bank)
*A red top is not required but may be requested in certain circumstances where extra testing is needed.
Each tube needs to be properly labeled with a chart label/barcode label AND a crossmatch sticker (Blood band sticker). All identifying information on the requisition must be identical to information on the specimen tube. This is a strict safety requirement, NO EXCEPTIONS.
Specimen Minimum Volume
1 mL
Specimen Stability
| Temperature | Time |
|---|---|
| Ambient (18-25°C) | |
| Refrigerated (2-8°C) (store) | |
| Frozen (-15 to -20°C) | Do no freeze |
Result Interpretations
Blood Type
| ABO Blood Typing | |||||
|---|---|---|---|---|---|
| Antisera / Patient Cells Reaction | Forward Type | Reagent Cells / Patient Serum Reaction | Reverse Type | ||
| Anti-A | Anti-B | A1 Cells | B Cells | ||
| 0 | 0 | O | (+) | (+) | O |
| (+) | 0 | A | 0 | (+) | A |
| 0 | (+) | B | (+) | 0 | B |
| (+) | (+) | AB | 0 | 0 | AB |
Antibody Screen
| Reaction | Antibody Screen |
|---|---|
| 0 (No agglutination) | Negative |
| 1+ or greater agglutination | Positive* |
*Antibody panels are performed on all positive screens for antibody identification
Prevalence (%) in US Population
| ABO Group | European Ethnicity | African Ethnicity |
|---|---|---|
| O | 45% | 49% |
| A | 40% | 27% |
| B | 11% | 20% |
| AB | 4% | 4% |
Rejection Criteria
- Samples outside of stability limits
- Samples not properly labled (2 patient identifiers & blood band sticker required)
- Samples submitted without blood band
Availability
| Performed | STAT |
|---|---|
| 24/7 | Yes |
Performing Laboratory
MultiCare Yakima Memorial Hospital Laboratory
Lab Department
Blood Bank
CPT Code
86900
86901
86850
LOINC
34532-2 Blood Type and Indirect antibody screen panel (Bld)