Related Experiment Videos
[The "activated coagulation time (ACT)": two simple screening methods for evaluating coagulation disorders in dogs]
T Glaus1, D Hudak-Glaus, C Hoeptner
1Veterinär-Medizinische Klinik, Universität Zürich.
Schweizer Archiv Fur Tierheilkunde
|January 1, 1996
Summary
Activated Coagulation Time (ACT) is a practical veterinary test for intrinsic coagulation. Instrumental measurement offers advantages like reduced blood volume and fewer errors, though proper venipuncture is crucial for accurate results.
Area of Science:
- Veterinary Hematology
- Clinical Pathology
- Coagulation Diagnostics
Context:
- Activated Coagulation Time (ACT) is widely used by veterinary practitioners in the USA.
- ACT offers a practical advantage for in-practice coagulation testing compared to other methods.
- The test can be performed using manual or instrumental techniques.
Purpose:
- To evaluate the utility and reference ranges of manual and instrumental ACT measurements in a veterinary setting.
- To compare the advantages and disadvantages of manual versus instrumental ACT methods.
- To identify critical factors affecting ACT test accuracy.
Summary:
- Reference ranges were established: instrumental (90-120s, median 105s) and manual at room temperature (115-145s, median 125s).
- Instrumental ACT requires less blood (0.4ml vs 2.0ml) and minimizes errors from inexperienced users.
- Both methods show comparable data spread, but traumatic venipuncture is the primary cause of inaccurate, shortened ACT results.
Impact:
- Provides essential reference ranges for veterinary ACT testing.
- Highlights the benefits of instrumental ACT for efficiency and accuracy in veterinary clinics.
- Emphasizes the critical importance of proper venipuncture technique for reliable coagulation assessment.