ARUP's Laboratory Test Directory

Inhibitor Assay, PTT with Reflex to PTT 1:1 Mix, with Reflex to 1-Hour Incubation : 2003266

Mnemonic: PTT INHIB

Methodology: Electromagnetic Mechanical Clot Detection
Performed: Sun-Sat
Reported: 1-4 days
Specimen Required: Collect: Lt. blue (sodium citrate). Refer to Specimen Handling at aruplab.com for hemostasis/thrombosis specimen handling guidelines.

Specimen Preparation: Transfer 2 mL plasma to an ARUP Standard Transport Tube. (Min: 1 mL)

Storage/Transport Temperature: CRITICAL FROZEN. Seperate specimens must be submitted when multiple tests are ordered.

Unacceptable Conditions: Serum. Specimens refrigerated more than four hours. Hemolyzed specimens.

Stability (collection to initiation of testing): Ambient: 4 hours; Refrigerated: 4 hours; Frozen: 2 weeks
Reference Interval:
 
Test Number Components Reference Interval
 Partial Thromboplastin Time 32-48 seconds
2003270Partial Thromboplastin Time 1:1 Mix (performed if PTT > 48 seconds) 32-48 seconds
2003272Partial Thromboplastin Time 1 hour By report
 Partial Thromboplastin Time Inhibitor Screen 1 Hour, Mix  
Note: If PTT is prolonged, a PTT 1:1 immediate mixing study will be added. If the immediate mixing study is normal, an incubated mixing study will be added. Additional charges apply.
CPT Code(s): 85730 PTT; if reflexed, add 85732 PTT 1:1 mix; if reflexed add 85730 1 hour PTT and 85732 1 hour PTT 1:1 mix
Cross References: Partial Thromboplastin Time (Inhibitor Assay, PTT with Reflex to PTT 1:1 Mix, with Reflex to 1-Hour Incubation) , Partial Thromboplastin Time 1:1 Mix (Inhibitor Assay, PTT with Reflex to PTT 1:1 Mix, with Reflex to 1-Hour Incubation) , Partial Thromboplastin Time Inhibitor Assay (Inhibitor Assay, PTT with Reflex to PTT 1:1 Mix, with Reflex to 1-Hour Incubation) , Partial Thromboplastin Time Mixing Study (Inhibitor Assay, PTT with Reflex to PTT 1:1 Mix, with Reflex to 1-Hour Incubation) , PTT 1:1 Mix (Inhibitor Assay, PTT with Reflex to PTT 1:1 Mix, with Reflex to 1-Hour Incubation), PTT Inhibitor Assay (Inhibitor Assay, PTT with Reflex to PTT 1:1 Mix, with Reflex to 1-Hour Incubation) , PTT Mixing Study (Inhibitor Assay, PTT with Reflex to PTT 1:1 Mix, with Reflex to 1-Hour Incubation)
 
 

 

 

 
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