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Protime

Specimen Type:

 

also known as PT , Prothrombin Time

Blood


HEMATOLOGY


Specimen requirements:

Blue Top

Reference ranges:

CATEGORY

LOW  

HIGH  

UNITS  

QUALITATIVE  

N/A

9.7

12.5

seconds

N/A

Critical values:

CATEGORY

LOW  

HIGH  

UNITS  

QUALITATIVE  

N/A

NA

>48

seconds

N/A

Unit of measure:

Seconds

Ideal sample:

2.7 mL Whole Blood, blue top tube

Absolute minimum amount:

2.4 mL Whole Blood, blue top tube

Method of collection:

N/A

Transportation:

N/A

Label instructions:

N/A

The following substances can adversely affect the results:

Hemolysis, Lipemia, Chylous, Heparin, Clots in Specimen, Icteric, Improper Line Draw, Hematocrit >56

Request test on form:

MULTI LABS [Chem/Hem/UA/Tox/BB/Rheum] ( 151-104 )

Order/entry screen(s):

Hematology/Coagulation

 

Common Lab Procedures

Stat frequency:

Daily

Stat turn around time:

1 hour

Routine frequency:

Daily

Must be in by:

N/A

Routine turn around time:

4 Hours

For Hillcrest deliver to:

SCRAP : Specimen Central Receiving and

 

Processing, room 2-117

Deliver the specimen to :

NA : NA

Scheduling requirements :

N/A

Method:

Optical Clot Detection

Special Instructions:

Specimens must be received in the laboratory within four hours of collection time. Patients with hematocrits in excess of 56% will need to have special tubes for collection. Call the Hematology laboratory prior to blood collection at 32244. The protime result will be accompanied with an INR result (international normalized ratio). See INR procedure for more information about the "INR."

 

Results are available on a Chart Copy

 

Results are Quantitative

CyberLAB abbreviation:

PT

CyberLAB code:

7302

Lab Processing Instructions:

N/A