Heparin level

Alphabetical Test listing

Heparin level-2283

  
Heparin level
  
2283
  
85520.2
  
HEP
  
Anti-Xa
Unfractionated heparin
HEP
  

Monitoring unfractionated Heparin

  
Sodium citrate (Na cit) plasma
  

Lt blue Sodium citrate (Na Cit) - 2.7mL

If the patient has a hematocrit >55, a specially prepared Lt blue Sodium citrate (NaCit) tube must be used in place of the standard Lt blue Sodium citrate (NaCit) tube.

Hematocrit-Anticoagulant adjustments

  
1.5 mL
  
0.6 mL
  
Do not over or under fill tube as the ratio of anticoagulant to whole blood is critical

Coag – tube fill guideline

  • Infusion: collect specimen 8 hours post start or adjustment
  • SubQ: collect specimen 4 hours post dose

If the patient has a hematocrit >55, a specially prepared Lt blue Sodium citrate (NaCit) tube must be used in place of the standard Lt blue Sodium citrate (NaCit) tube.

Hematocrit-Anticoagulant adjustments

  

Samples should be centrifuged within 1 hour of collection and tested no longer than two (2) hours from collection at room temperature.

If testing cannot be completed within 2 hours of collection:

  1. Process Platelet Poor Plasma (P.P.P)
  2. Transfer plasma into an aliquot tube using a spot label "NaCit Plasma P.P.P" to label as platelet poor plasma

  3. Freeze immediately

  4.  
  

Microcentrifuge vial/tube in a Snap cap conical vial/tube and cap (Beaker sites)

                             

 

Coagulation specimen transport vial/tube  (all other sites)

                                     

  

Routine:

Frozen (strict) - 2 weeks

Refrigerated - NO

 

STAT:

Ambient

  • Whole blood, unopened - 1 hr
  • Centrifuged plasma on the cells - 2 hours
  
  • Improper labeling (unlabeled or mislabeled)
  • Improper anticoagulant
  • Improperly filled tube
  • Hemolysis
  • Clotted specimen
  • Delay in transport
  • Improper storage/transport temperature
  • Patient on heparin > 1.0 IU/mL
  
AHL - Coagulation: W
Available at the Central Laboratory and Mercy and United hospitals.
  
Daily
  
1 day
  

Chromogenic Assay Anti-Xa

  
UFH IV Infusion Therapeutic VTE: 0.3-0.7 U/mL
UFH IV Infusion Therapeutic AF/Valve Bridging: 0.3-0.5 U/mL
UFH IV Infusion Therapeutic ACS: 0.3-0.5 U/mL
UFH IV Infusion Therapeutic High Bleeding Risk: 0.3-0.5 U/mL
UFH IV Infusion Prophylactic: 0.11-0.29 U/mL
UFH SubQ Therapeutic: 0.56-0.68 U/mL
UFH SubQ Prophylactic: 0.15-0.25 U/mL
  

>1.0 U/mL

  
85520
  
11/30/2001
  
01/13/2021
  
02/18/2020