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Related Experiment Videos

Activated coagulation times of normal cows.

J H Riley1, E D Lassen

  • 1Department of Veterinary Pathology, College of Veterinary Medicine, Iowa State University, Ames, Iowa 50011.

Veterinary Clinical Pathology
|January 1, 1979
PubMed
Summary

Activated Coagulation Time (ACT) in cows was assessed using duplicate samples. The study found acceptable repeatability for ACT, with a mean of 145 seconds, indicating reliable clotting time measurements in normal cattle.

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Area of Science:

  • Veterinary Medicine
  • Hematology
  • Animal Science

Background:

  • Accurate assessment of hemostasis is crucial in veterinary diagnostics.
  • The Activated Coagulation Time (ACT) is a valuable point-of-care test for monitoring coagulation.
  • Establishing reference ranges for ACT in cattle is essential for clinical interpretation.

Purpose of the Study:

  • To determine the Activated Coagulation Time (ACT) in a cohort of normal cows.
  • To evaluate the repeatability of ACT measurements in bovine blood samples.
  • To provide baseline data for ACT in healthy cattle.

Main Methods:

  • Blood samples were collected from 10 healthy cows.
  • Duplicate ACT measurements were performed on each sample.
  • Standard laboratory procedures for ACT determination were employed.

Main Results:

  • The mean ACT for the 10 cows was 145 seconds.
  • The range of ACT values observed was 120-180 seconds.
  • Standard deviations were 18 and 13 seconds for the initial and repeat samplings, indicating good precision.

Conclusions:

  • The Activated Coagulation Time (ACT) in normal cows is repeatable.
  • The established mean ACT and range provide a reference for bovine hemostasis evaluation.
  • ACT is a reliable measure for assessing coagulation status in cattle.

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