Collect

Preferred
Tube Name Blue
Optimum Volume Full
Minimum Volume Full

Specimen Preparation

Prior to freezing, collection tubes must be centrifuged at a time and speed that results in the production of a platelet poor plasma which contains a residual platelet count of <10,000/uL.

Unacceptable Conditions

Serum. EDTA Plasma, Clotted, Hemolyzed specimens &/or Improperly labeled or filled collection tube.

Storage/Transport Temperature

Whole Blood (Spun or Unspun) can be transported or stored at Room Temperature (18-24oC). for up to 24 hours
Platelet Poor Plasma Separated from the cells can be transported or stored Frozen at -20oC for up to 2 weeks.

Stability (from collection to initiation)

Whole Blood (Spun or Unspun) stored at Room Temperature (18-24oC) for 24 hours
Platelet Poor Plasma Separated from the cells and Frozen at -20oC for up to 2 weeks.

Cerner Orderable(s)

PT/INR

Performed

Bardmoor ER Laboratory, Bartow Regional Medical Center, Mease Countryside Hospital, Mease Dunedin Hospital, Morton Plant Hospital, Morton Plant North Bay Hospital, South Florida Baptist Hospital, St. Anthony's Hospital, St. Joseph's Hospital, St. Joseph's Hospital North, St. Joseph's Hospital South, Winter Haven Hospital.

24/7

Ordering Recommendations

The PT test is used as an initial test for screening of presurgical patients, during the evaluation of bleeding disorders, for the detection of Factor Deficiencies (Factor II, V, X) and/or for the monitoring of oral anticoagulation therapy (Warfarin/Coumadin).

Methodology

Clot Detection and Analysis by Spectrophotometric Evaluation

Reported

Within 24 hours

Synonyms

  • INR
  • Pro Time
  • Protime
  • Protime, PT/INR
  • PT/International Normalized Ratio

Reference Interval


Components		 Reference Interval
Prothrombin Time 9.8 - 13.3 seconds
International Normalized Ratio Oral Anticoagulant Therapy - Monitor based on INR value only.
INR: 2.0-3.0 Advised for most patients requiring Oral Anticoagulants.
INR: 2.5-3.5 Advised for high risk patients with Mechanical Hart Valves

BayCare Critical Value: INR >=4.0

CPT Codes

85610
Collection

Collect

Preferred
Tube Name Blue
Optimum Volume Full
Minimum Volume Full

Specimen Preparation

Prior to freezing, collection tubes must be centrifuged at a time and speed that results in the production of a platelet poor plasma which contains a residual platelet count of <10,000/uL.

Unacceptable Conditions

Serum. EDTA Plasma, Clotted, Hemolyzed specimens &/or Improperly labeled or filled collection tube.

Storage/Transport Temperature

Whole Blood (Spun or Unspun) can be transported or stored at Room Temperature (18-24oC). for up to 24 hours
Platelet Poor Plasma Separated from the cells can be transported or stored Frozen at -20oC for up to 2 weeks.

Stability (from collection to initiation)

Whole Blood (Spun or Unspun) stored at Room Temperature (18-24oC) for 24 hours
Platelet Poor Plasma Separated from the cells and Frozen at -20oC for up to 2 weeks.
Ordering

Cerner Orderable(s)

PT/INR

Performed

Bardmoor ER Laboratory, Bartow Regional Medical Center, Mease Countryside Hospital, Mease Dunedin Hospital, Morton Plant Hospital, Morton Plant North Bay Hospital, South Florida Baptist Hospital, St. Anthony's Hospital, St. Joseph's Hospital, St. Joseph's Hospital North, St. Joseph's Hospital South, Winter Haven Hospital.

24/7

Ordering Recommendations

The PT test is used as an initial test for screening of presurgical patients, during the evaluation of bleeding disorders, for the detection of Factor Deficiencies (Factor II, V, X) and/or for the monitoring of oral anticoagulation therapy (Warfarin/Coumadin).

Methodology

Clot Detection and Analysis by Spectrophotometric Evaluation

Reported

Within 24 hours

Synonyms

  • INR
  • Pro Time
  • Protime
  • Protime, PT/INR
  • PT/International Normalized Ratio
Result Interpretation

Reference Interval


Components		 Reference Interval
Prothrombin Time 9.8 - 13.3 seconds
International Normalized Ratio Oral Anticoagulant Therapy - Monitor based on INR value only.
INR: 2.0-3.0 Advised for most patients requiring Oral Anticoagulants.
INR: 2.5-3.5 Advised for high risk patients with Mechanical Hart Valves

BayCare Critical Value: INR >=4.0
Administrative

CPT Codes

85610

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