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PLEASE NOTE: Recent changes have been made to this Test


 Recent changes for Coagulation Studies

Recent changes for Coagulation Studies

Date
Field
Changed From
Changed To
10th April 2019
Notes

When blood is collected from an arterial line it is necessary to discard the first 20 mL of blood to clear any heparin from the line before collecting the blood for coagulation tests

When collection is by vacuum tube, the coagulation tube should be collected second to avoid artefactual shortening of coagulation assays due to trauma of venesection

Whe blood is collected for an APTT or Anti-Xa Assay for control of heparin or low molecular weight heparin therapy, it is essential that the citrate tube is sent immediately to the laboratory

Tests include : INR, APTT

Do not use 1 ml citrate tubes.

When blood is collected from an arterial line it is necessary to discard the first 20 mL of blood to clear any heparin from the line before collecting the blood for coagulation tests

When collection is by vacuum tube, the coagulation tube should be collected second to avoid artefactual shortening of coagulation assays due to trauma of venesection

Whe blood is collected for an APTT or Anti-Xa Assay for control of heparin or low molecular weight heparin therapy, it is essential that the citrate tube is sent immediately to the laboratory

 

Do not use 1 ml citrate tubes.

9th April 2019
Request Group

COAG

COAGP

Coagulation Studies

Ordering information:

Please note that Coagulation Studies consists of the following tests :

PT (INR)

APTT

Thrombin Time (TT)

Fibrinogen

Laboratory:
Coagulation
Test Code:
COAGP
Specimen types:
Plasma
Container types:
Sodium CitrateSodium Citrate
Collection Instructions:

Do not use 1.0 mL citrate tubes

Notes:

When blood is collected from an arterial line it is necessary to discard the first 20 mL of blood to clear any heparin from the line before collecting the blood for coagulation tests

When collection is by vacuum tube, the coagulation tube should be collected second to avoid artefactual shortening of coagulation assays due to trauma of venesection

Whe blood is collected for an APTT or Anti-Xa Assay for control of heparin or low molecular weight heparin therapy, it is essential that the citrate tube is sent immediately to the laboratory

 

Do not use 1 ml citrate tubes.

Frequency:
Daily
Result Turnaround Time:
2 hours
Reference Interval:

INR 0.8 - 1.2

APTT 26 - 34 sec

TT 18 - 24 sec

FIB 1.9 - 4.3 g/L

Laboratory Use Only
Storage Instructions:

Fill to label marker and mix by inversion

Centrifuge and separate within 60 minutes of collection.