Effect of catheter gauge on the success of intravenous catheter placement by veterinary students

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Abstract

The purposes of this study were to determine if senior veterinary students find it easier to place a smaller-bore catheter, and to relate patient variables with student success in catheter placement. For dogs between 10 kg and 20 kg, the catheter size options were 20 gauge or 22 gauge. For dogs larger than 20 kg, the catheter size options were 18 gauge or 20 gauge. Variables recorded included time for catheter placement, number of catheterization attempts, number of catheters used, number of legs used, difficulty of catheterization, student success, and patient characteristics including signalment, weight, body condition score, premedication drugs given, tentative diagnosis, and procedure. If the student could not place an IV catheter after three attempts, it was graded as a student catheter placement failure. For the 55 students participating in the study over 28 months, we recorded 192 individual catheterization attempts. In small patients, students were successful in 19/20 attempts with 22-gauge catheters and in 24/30 with 20-gauge catheters. In large patients, students were successful in 59/68 attempts with 20-gauge catheters and 61/74 with 18-gauge catheters. The overall success rate was 164/192 (85%). Students were more likely to be successful when attempting placement in those dogs receiving acepromazine than in those not receiving acepromazine (p ¼ .02). There were no significant differences among any of the other variables for difficulty, placement time, number of attempts, or student success. Clinicians and educators may select a size catheter for the patient without concern for the effects on student catheter placement success.

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APA

Hofmeister, E. H., & Quandt, J. (2018). Effect of catheter gauge on the success of intravenous catheter placement by veterinary students. Journal of Veterinary Medical Education, 45(2), 255–259. https://doi.org/10.3138/jvme.0916-148r2

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