Platelet Aggregation with Interpretation

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General Information

Lab Name
Platelet Aggregation w/Interp
Lab Code
PLAGI
Epic Ordering
Platelet Aggregation Study w/Interp
Description

LMR approval required for inpatients system-wide for Platelet Aggregation Studies (PLAGI/PLAGN/RIPAG)

Patient must be off anti-inflammatory drugs for 10 days.

Clinical assay interference and limitations: Abnormal Aggregation responses may occur if the patient has taken aspirin, non-steroidal anti-inflammatory agents or other platelet inhibiting medications within 10 days prior to testing. If the patient's platelet count is below 100,000/uL the patient may have a reduced or absent aggregation to ADP and decreased response with other agonists.

For Platelet Aggregation without Interpretation, see test code: PLAGN

Forms & Requisitions

Thrombosis & Bleeding Work-up

Synonyms
Components

Interpretation

Method

Whole blood platelet aggregometry

Reference Range
See individual components

Ordering & Collection

Specimen Type
Blood
Collection

MUST SCHEDULE AT LEAST 24 HRS IN ADVANCE OF BLOOD DRAW. Schedule with the Coagulation lab at 206 598-6242 during business hours 7:00am - 3:30 pm Monday thru Friday at least 24 hours before collection.

Best if blood is collected at UW-MT. (2) 4.5 mL BLUE TOP or (3-5) 2.7 mL Plastic BLUE TOP tubes or (4-5) 1.8mL BLUE TOP tubes

Forms & Requisitions

Thrombosis & Bleeding Work-up

Approval Required
LMR approval required for inpatients system-wide for Platelet Aggregation Studies (PLAGI/PLAGN/RIPAG)
Handling Instructions

Note: Sample is labile. Carry the specimen to the Laboratory Immediately. DO NOT send through pneumatic tube system.

Quantity
requested: entire samples
minimum: 8.1 mL whole blood

Processing

Processing

Hold Blood at Room Temperature. Send to UW Coagulation Lab within 30 minutes of blood collection.

Performance

LIS Dept Code
Performing Location(s)
UW-MT Coagulation
206-520-4600

Clinical Lab, Room NW220,
University of Washington Medical Center,
1959 NE Pacific street, Seattle, WA 98195

Frequency
As scheduled, Monday-Friday 8:30am-2:30pm. TAT = 24hrs
Available STAT?
No

Billing & Coding

CPT codes
82397x2, 85576x6
LOINC
48805-6
Interfaced Order Code
UOW3021