Screening coagulation tests in the cat: reference values based on direct venipuncture and catheterized samples

Area of Science:

• Veterinary Hematology
• Comparative Coagulation Studies in Feline Models

Background:

• Establishing reference ranges for coagulation parameters in healthy cats is crucial for accurate diagnosis and treatment.
• Understanding potential variations in these parameters based on sample collection methods and cat populations (pet vs. laboratory) is important for clinical interpretation.

Purpose of the Study:

• To determine and compare key hemostatic parameters in healthy pet cats and laboratory-conditioned cats.
• To assess if sample collection method (venipuncture vs. jugular catheter) influences coagulation test results.

Main Methods:

• Collected blood samples from 46 healthy adult cats (20 pet, 26 laboratory-conditioned).
• Measured platelet count, prothrombin time (PT), activated partial thromboplastin time (aPTT), fibrinogen degradation products (FDPs), fibrinogen, and modified thrombin time (MTT).
• Analyzed data using Student's t-test to compare results between the two groups.

Main Results:

• A statistically significant difference (p <.05) was observed in fibrinogen levels between pet cats and laboratory-conditioned cats.
• No significant differences were detected in platelet count, PT, aPTT, FDPs, or MTT between the two groups.
• Data for all parameters were tabulated with range, mean, standard error, and 95% confidence intervals.

Conclusions:

• Fibrinogen levels may differ between pet and laboratory-conditioned cats, potentially due to factors related to their environment or handling.
• Common coagulation parameters like PT, aPTT, and platelet counts appear consistent across these two cat populations when using standard collection methods.
• Further research is warranted to explore the reasons behind fibrinogen variations and to establish comprehensive feline coagulation reference ranges.