Whole blood or plasma on ice. Clotted sample. Unspun specimen > 4 hrs old. Underfilled tube. Gross hemolysis.
Collection Comments
Full, 2.7mL Blue, BD 3.2% Na Citrate plastic tube. Do not send whole blood or plasma to lab on ice. Double spin and freeze plasma within 4 hrs of collection: Spin at 3000rpm for 15 min. Place top 2/3 of plasma in aliquot tube and spin aliquot at 3000 rpm for 15 min. Take top 2/3 of 2nd spin and put in another aliquot tube. Mark tube ‘plasma'. Freeze immediately. Send frozen platelet poor plasma. Remember to properly label the aliquot tube with patient name, DOB, test and collect date.
Protein S Clottable is useful for diagnosing hereditary or acquired Protein S deficiency. Protein S deficiency may be hereditary or acquired. Acquired deficiency may be observed during pregnancy, oral anticoagulant therapy, oral contraceptive use, in liver disease, in newborn infants as well as in other clinical conditions. Deficiency of Protein S has been associated with a high risk of developing venous thromboembolism especially in young people.
Performed
Days; once/week
Methodology
Clottable
Reported
7 days
Performing Lab
Special Coag
Synonyms
930
Protein S Functional and Protein S Activity
PrtSClot
Protein S Functional
Protein S Activity
Reference Interval
52-136 %
CPT Codes
85306
LOINC Codes
NAME
LOINC
Order
Protein S Clottable
31102-7
Result
Protein S Clottable
31102-7
Test Code (Outreach Synonym)
930
Catalog Code
667735
Collection
Collect
Blood, Light Blue
Preferred Draw Volume
2.7 mL
Minimum Draw Volume
Full tube
Unacceptable Conditions
Whole blood or plasma on ice. Clotted sample. Unspun specimen > 4 hrs old. Underfilled tube. Gross hemolysis.
Collection Comments
Full, 2.7mL Blue, BD 3.2% Na Citrate plastic tube. Do not send whole blood or plasma to lab on ice. Double spin and freeze plasma within 4 hrs of collection: Spin at 3000rpm for 15 min. Place top 2/3 of plasma in aliquot tube and spin aliquot at 3000 rpm for 15 min. Take top 2/3 of 2nd spin and put in another aliquot tube. Mark tube ‘plasma'. Freeze immediately. Send frozen platelet poor plasma. Remember to properly label the aliquot tube with patient name, DOB, test and collect date.
Protein S Clottable is useful for diagnosing hereditary or acquired Protein S deficiency. Protein S deficiency may be hereditary or acquired. Acquired deficiency may be observed during pregnancy, oral anticoagulant therapy, oral contraceptive use, in liver disease, in newborn infants as well as in other clinical conditions. Deficiency of Protein S has been associated with a high risk of developing venous thromboembolism especially in young people.
