Test directory: Elevated PTT/Normal PT Workup, w/ Reflex

Ordering Code6304
Test NameElevated PTT/Normal PT Workup, w/ Reflex
AliasAbnormal aPTT/Normal Prothrombin Time Reflexive Profile
Prolonged Activated Partial Thromboplastin Time/Normal
Prothrombin Time Workup with Reflex testing
Profile Contains
Preferred SpecimenPlasma, Citrate 3.2% (Lt Blue)
Preferred Container3 B (Citrate - Blue Top)
Optimum Volume4 mL (4 aliquot tubes with 1 mL of plasma in each)
Collection InstructionsDraw 4 full tubes. Mix tubes well.
Handling InstructionsQMC Punchbowl: Deliver specimens to the Punchbowl laboratory immediately
Other sites: Double centrifuge specimen(s), aliquot plasma into 4 separate aliquot tubes and freeze at -20 deg. C immediately. Do
NOT thaw once specimen is frozen.
Transport RequirementsPreferred method of transport is frozen plasma.
Specimen StabilityAmbient: 1 Hour Whole Blood (unopened tubes)
Frozen: 2 Weeks Plasma
Avail. StatNO
Analytic Time1 Day

Reference range(s) for Anti-Xa Screen

ComponentAgeMale NormMale Critical LowMale Critical HighFemale NormFemale Critical HighFemale Critical LowUnitsAdd'l info
Anti-Xa ScreenALL0.0-0.10.0-0.1

Reference range(s) for Fibrinogen

ComponentAgeMale NormMale Critical LowMale Critical HighFemale NormFemale Critical HighFemale Critical LowUnitsAdd'l info
FibrinogenALL200-496200-496mg/dL

Reference range(s) for Thrombin Time

ComponentAgeMale NormMale Critical LowMale Critical HighFemale NormFemale Critical HighFemale Critical LowUnitsAdd'l info
Thrombin TimeALL15-2215-22secs

Reference range(s) for Part. Throm. Time (PTT)

ComponentAgeMale NormMale Critical LowMale Critical HighFemale NormFemale Critical HighFemale Critical LowUnitsAdd'l info
PTTALL23.5-37.823.5-37.8secs

Reference range(s) for Prothrombin Time (PT)

ComponentAgeMale NormMale Critical LowMale Critical HighFemale NormFemale Critical HighFemale Critical LowUnitsAdd'l info
ProtimeALL11.8-14.211.8-14.2secs
INRALL>= 4.5>= 4.5