Test Code PLTLR PLATELET PHERESIS
Methodology
Platelet transfusion may be indicated for treatment of patients with decreased platelet count or abnormal platelet function.
Note: See “Blood Banking (Transfusion Medicine)—Blood Transfusion Policies and Standard Practices” in Special Instructions for additional information.
Specimen Requirements
If irradiated, CMV-negative, or HLA-matched platelets are required, call Logan Health Medical Center Blood Bank at 406-752-1738.
No specimen is required if patient is receiving only platelets and no other blood product, and if patient’s blood type is on file in Logan Health Medical Center Blood Bank Computer System. If patient’s blood type is not on file, or if patient will be receiving other blood products, draw specimen as follows:
Submit only 1 of the following specimens:
PREFERRED:
Pink-Top Tube
Container/Tube: Pink-top (EDTA tube) - Plain, red-top tube or serum gel tube is not acceptable.
Specimen Volume: 6 mL of whole blood (minimum volume: Contact Blood Bank)
Collection Instructions: Forward promptly in original tube(s).
Alternate:
Lavender-Top Tube
Container/Tube: Lavender-top (EDTA) tube(s)-Plain, red-top tube or serum gel tube is not acceptable.
Specimen Volume: 3 mL to 4 mL of whole blood (minimum volume: Contact Blood Bank)
Collection Instructions: Forward promptly in original tube(s).
Unacceptable:
- Hemolyzed Specimens
- Mislabeled or unlabeled Specimens
- Illegible specimen labels - NO GEL PENS
NOTE:
- Include report of diagnosis and history of transfusions, pregnancy, and drug therapy.
- Specimen being drawn may result in a possible transfusion. Specimen must be completely labeled as follows.
- Identify patient by asking them to state their name. If patient cannot identify himself or herself, find someone who can positively identify patient.
- When labeling Blood Bank pre-transfusion specimens, use Mobilab or a two person patient identification verification. Include both the collector's mnemonics and the verifier's mnemonic on the specimen label.
- Label specimen as follows prior to leaving patient’s side. Using a ballpoint pen (no gel).
- Patient’s full name
- Patient’s birthdate
- Date and time of draw
- Collector's mnemonic
- Verifier's mnemonic - not required if using Mobilab
Send labeled specimen to the laboratory.
* For 14 day specimens include a completed Outpatient/Pre-Admit Transfusion Medicine Identification (Blood Product) Form.
Forms:
- Outpatient/Pre-Admission Transfusion Medicine Identification Form
- See "Requisitions" in Special Instructions for a copy of the form.
- Include -
- Patient’s full name
- Patient’s birthdate
- Date and time of draw
- Collector's mneimonic
- Verifier's mnemonic - not required if using Mobilab
- Transfusion History
Day(s) Test Set Up
Monday through Sunday
Reference Values
Not applicable
Performing Laboratory
Logan Health Medical Center Laboratory
Test Classification and CPT Coding
86900-ABO (if appropriate)
86901-Rh (if appropriate)
86850-Antibody Screen (if appropriate)
Specimen Transport Temperature
Refrigerate:
2 to 8 C