1:1 Mix_PTT

General Information

Lab Name

1:1 Mix_PTT

Lab Code

PTTMX1

Epic Name

(not orderable in Epic)

Synonyms

Mix-PTT 1:1, Partial Thromboplastin Time-MIX

Components

Code Name
PTTPT PTT Patient
PTTNOR PTT Normal Pool
PTTMIX PTT 1:1 Mix Immediate
INCMIX PTT 1:1 Mix Incubated
PTTCOM PTT 1:1 Mix Comment

Interpretation

Method

Clot based

Reference Range

See individual components

Ref. Range Notes

For interpretation contact the Lab Med Resident on-call through the paging operator at 206-598-6190.

Ordering & Collection

Specimen Type

Collection

5 mL plastic BLUE TOP (CITRATE) tube

Handling Instructions

The Laboratory MUST process specimen, within 6 hrs of blood collection

Quantity

requested: entire sample

Processing

Take specimen to the Coag bench for processing.

Outside Laboratory:  Centrifuge for 10 minutes, remove plasma & re-spin plasma for another 10 minutes. Decant & Freeze plasma (minimum 1.0 mL) @ -50°C to -70°C. Send frozen on dry ice.

Performance

LIS Dept Code

Coagulation (COAG)

Performing Location(s)

Frequency

Daily

Available STAT?

Yes

Billing & Coding

CPT codes

85730, 85732

LOINC

18720-3