Blood, ArterialBlood, CapillaryBlood, Central LineBlood, Venous
Specimen Types
Blood
Container
Blue Top Tube
Collection Instructions
Container/Tube: Light blue-top (3.2% sodium citrate) tube Specimen: Full tube Transport Temperature: Refrigerate Collection Instructions: 1. If no other tube is drawn, draw a discard tube. 2. Fill tube completely. 3. Mix by gently inverting several times. Collection Instructions:If the light blue top tube is the only tube to be drawn and will be collected using a butterfly set, a “discard” tube (either a plain[non-additive] or light blue) must be partially drawn just to completely fill the collection tubing with blood before collecting the light blue top for testing. Failure to perform this step will result in an under-filled tube that the laboratory will reject. Allow blood to fill the tube completely to the line on the tube. The ratio of blood to anticoagulant is critical in coagulation testing and at least a 90% fill is required. Immediately mix the specimen by gently inverting the tube 4-6 times to completely mix with the anticoagulant. Failure to perform this can result in a clotted sample, which is unacceptable for testing.
Specimen Volume
Full tube
Transport Instructions
Refrigerate
Specimen Stability
Preferred 4 Hours Acceptable: 24 hrs Refrigerated
Methodology
Clotting-ACL® TOP/IL
Days Performed
Monday through Sunday, continuously
Performing Laboratory
Northwell Health Laboratories
CPT
85730
PDM
5500540
Only Orderable at Locations:
Orderable Everywhere
Results
Component Name
Base Name
Common Name
External Name
ACTIVATED PARTIAL THROMBOPLASTIN TIME
APTT
APTT
APTT
APTT COMMENT
APTTCOM
APTT COMMENT
APTT Comment
Result Interpretation
26.1 - 36.8 Seconds
Recommended therapeutic heparin range (full dose) for APTT is 64-98 seconds. Recommended therapeutic argatroban range is 1.5 to 3.0 times the baseline APTT value, not to exceed 100 seconds. Recommended therapeutic refludan range is 1.5 to 2.5 times the baseline APTT.
