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# A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

PTT	Specimen Type:
also known as APTT , Activated Partial Thromboplastin Time	Blood

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HEMATOLOGY

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Specimen requirements:

Blue Top

Reference ranges:

CATEGORY	LOW	HIGH	UNITS	QUALITATIVE
N/A	25.0	34.0	seconds	N/A

Critical values:

CATEGORY	LOW	HIGH	UNITS	QUALITATIVE
N/A	N/A	>70	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

For Thornton deliver to:

Hematology : Processing Desk, 1st floor,

Hospital, room 1-013

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.

Results are available on a Chart Copy

Results are Quantitative

CyberLAB abbreviation:

PTT

CyberLAB code:

7312

Lab Processing Instructions:

N/A

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