Veripath Test Directory

Epic Test Name FIBTEM
Description FIBTEM assay is a semi-quantitative EXTEM-based assay used to monitor the clot firmness of citrated whole blood specimens after blocking platelet contribution to the clot firmness. The FIBTEM reagent contains cytochalasin D as platelets inhibitor (inhibiting actin) and CaCl2 as recalcification reagent. Therefore only the fibrin clot is measured in an extrinsic activated test using EXTEM
Specimen Requirements 
Container Light blue (3.2 % sodium citrate) collection tube
Specimen Type Blood
Preferred Collection Volume 3mL
Minimum Collection Volume 2mL
Collection Instructions When drawing specimens for coagulation testing, always draw a "pilot" tube (7-10ml plain red top tube), completely filled. This removes tissue fluid contamination. Samples should be obtained from peripheral vein whenever possible. If drawn from indwelling catheter, the line should be flushed with 15mL of saline. After irrigation, a "pilot" tube should be drawn and discarded.
Specimen Handling In-house patients, transport at room temperature.
Outside clients, follow collection instructions and the steps below:
1. Specimen must remain at room temperature.
2. Specimen must arrive withing 1 hour after collection.
Rejection Criteria Hemolysis, clotted, short sample, >4 hours old, frozen or centrifuged
Methodology Rotational thromboelastometry
Reference Range A20 (7-23mm); MCF(7-23)
CPT Code(s) 85396
Department Hemostasis/Coagulation
Contact Information Hemostasis Lab; 214-633-4959 Customer Service: 214-633-0400, Toll Free 1-877-887-8136
Turn Around Time4 hours (24 hours- Outside clients)
Performed Sunday-Saturday
Performed by Hemostasis Lab
Updated/Reviewed 07/25/2016