Sign in →

Test Code PTTMIX APTT Mix

Additional Codes

N/A

Alias

aPTT Mixing Study

Collection Method

Venous Collection

Container

Blue sodium citrate tube

Instructions/Special Handling

2 blue sodium citrate tubes are required for testing

Preferred Specimen

2 Blue sodium citrate tubes

Acceptable Specimes

2 Blue sodium citrate tubes

Units

Seconds

Reference Ranges

25.1 - 36.5 seconds

Critical Values

>/= 140 seconds

 

Reasons for Rejection

Hemolysis N/A
Icterus N/A
Lipemia Grossly lipemic
Other QNS, Contaminated, Improperly labeled, Improper specimen type, Clotted, Insufficiently or over filled tube

 

Specimen Stability

Ambient (15-25°C) 4 hours
Refrigerated (2-8°C) N/A
Frozen (-20°C) 1 month (-20°C) or 3 months (-70°C)

 

Performing Site

Boone Health Laboratory

Performance Information

Days/Times Performed Monday - Friday
Expected Turn around Time 1 -3 days
Methodology/Method Description Stage Starr - Mechanical clot detection

CPT Code(s)

85730

85732

CMS National Coverage Policy - PTT

Panel Components

N/A