Collect in light blue top tubes (sodium citrate anticoagulant).
All routine coagulation testing (PT/INR, PTT, FIB, D-Dimer, Xa-Lovenox, Xa-Unfractionated, DTIBI, ATIII) may be collected in the same tube.
One FULL 1.8 mL OR 2.7 mL tube.
Note: For all coagulation testing, ensure tubes are sufficiently filled. Refer to the guide below.
If the patient's Hematocrit is >55%, call the Coagulation lab at 41778 and ask for a light blue top tube with an adjusted amount of 3.2% trisodium citrate anticoagulant.
Volume Required
One completely filled 1.8 mL or 2.7 mL light blue top tube
Minimum Required
One completely filled 1.8 mL light blue top tube
Phlebotomy Draw
Yes
Performing Lab
Coagulation Laboratory
Performed
24/7
Methodology
Mechanical clot detection
Reported
Stat - < 60 Min; Routine - approximately 90 Min
Synonyms
PT
LIS Mnemonic
PTI
Available STAT
Yes
Reflex Testing
N/A
Vendor
None
Reference Ranges
>6 months
11.1-13.4 sec
For patients < 6 months:
Values change rapidly in the neonatal period and are dependent on the gestational age at delivery.
Consult Nathan D, Oski F, Hematology of Infancy and Childhood.
CPT Codes
85610
Collection
Collect
Collect in light blue top tubes (sodium citrate anticoagulant).
All routine coagulation testing (PT/INR, PTT, FIB, D-Dimer, Xa-Lovenox, Xa-Unfractionated, DTIBI, ATIII) may be collected in the same tube.
One FULL 1.8 mL OR 2.7 mL tube.
Note: For all coagulation testing, ensure tubes are sufficiently filled. Refer to the guide below.
If the patient's Hematocrit is >55%, call the Coagulation lab at 41778 and ask for a light blue top tube with an adjusted amount of 3.2% trisodium citrate anticoagulant.
Volume Required
One completely filled 1.8 mL or 2.7 mL light blue top tube
Minimum Required
One completely filled 1.8 mL light blue top tube
Phlebotomy Draw
Yes
Ordering
Performing Lab
Coagulation Laboratory
Performed
24/7
Methodology
Mechanical clot detection
Reported
Stat - < 60 Min; Routine - approximately 90 Min
Synonyms
PT
LIS Mnemonic
PTI
Available STAT
Yes
Reflex Testing
N/A
Vendor
None
Result Interpretation
Reference Ranges
>6 months
11.1-13.4 sec
For patients < 6 months:
Values change rapidly in the neonatal period and are dependent on the gestational age at delivery.
Consult Nathan D, Oski F, Hematology of Infancy and Childhood.
