Newcastle Laboratories

Fibrinogen - Clauss

Clinical Background:

A funtional fibrinogen assay. Thrombin is added to anticoagulated plasma and the time taken for clot formation is measured. The time taken is concentration dependant (the lower the level the longer...

A funtional fibrinogen assay. Thrombin is added to anticoagulated plasma and the time taken for clot formation is measured. The time taken is concentration dependant (the lower the level the longer the time) and this assay is used in cases of fibrinolysis. It is used in conjunction with the PT-derived fibrinogen to investigate suspected dysfibrinogenaemia (the PT-Derived result will be normal, the Clauss result will be low)

Read More

Test Details

  • Discipline:

    Haemostasis

    Haemostasis

  • Specimen Container Adult:

    Light blue - sodium citrate

    Light blue - sodium citrate

  • Specimen Container Paediatric:

    Light blue - sodium citrate

    Light blue - sodium citrate

  • Minimum Volume Adult:

    2.7mL

    2.7mL

  • Minimum Volume Paediatric:

    1.3mL

    1.3mL

  • Special Requirement:

    Tube must be correctly filled to line, to ensure correct ratio of blood to anticoagulant, ensure adequate mixing.

    Tube must be correctly filled to line, to ensure correct ratio of blood to anticoagulant, ensure adequate mixing.

  • Sample Stability:

    24 hrs

    24 hrs

  • Transport Requirements:

    Samples should be transported to lab without delay

    Samples should be transported to lab without delay

  • Freq Analysis:

    Continuous

    Continuous

  • Add On Test:

    All urgent add ons via telephone on 0191 28 24718, and must be confirmed via email to the appropriate email address

    tnu-tr.bloodsciencesadditions@nhs.net (internal)

    tnu-tr.bloodsciencesadditions@nh...

    All urgent add ons via telephone on 0191 28 24718, and must be confirmed via email to the appropriate email address

    tnu-tr.bloodsciencesadditions@nhs.net (internal)

    tnu-tr.bloodsciencesadditions@nhs.net (external)

    Read More
  • Quality Assurance:

    UK NEQAS Blood Coagulation

    UK NEQAS Blood Coagulation

  • Reference Ranges:

    Fibrinogen (Clauss) 2.1 - 4.8g/L

    Fibrinogen (Clauss) 2.1 - 4.8g/L

  • Other Info:

    Requested as a follow on test when derived fibrinogen less than 1.5g/L as part of a coagulation screen.

    Requested as a follow on test when derived fibrinogen less than 1.5g/L as part of a coagulation screen.

  • Routine Contact Name:

    Peter Strong

  • Routine Telephone:

    0191 282 0332

    0191 282 0332

  • Routine Email:

  • Specialist Test:

    No

    No

  • Specialist Contact Name:

    Haematology/Haemostasis Health care Scientist

    Haematology/Haemostasis Health care Scientist

  • Specialist Telephone:

    0191 213 9758

    0191 213 9758

Availability:

All times, both sites

Turn Around:

Urgent sample: 2 hours

Routine sample: 4 hours

View all tests