Background: Assessment of emergency patients can be fraught with difficulty. The adoption of certain, straightforward ultrasound techniques can add vital information to assist veterinary surgeons with both initial triage and disease progression.
Aim of the article:This article aims to provide an introductory guide to performing point-of-care ultrasound for veterinary practitioners, as well as detailing some of the diagnostic information that can be obtained. Dan Lewis qualified from the University of Cambridge in 1995. He worked in mixed practice for five years, where he gained the RCVS certificate in veterinary anaesthesia. In 2008, he embarked upon a residency at the Royal Veterinary College, London, obtaining the American diploma in emergency and critical care in 2011, and the European diploma in 2015. He joined VetsNow Referrals in Glasgow in 2015, where he is now the national emergency critical care (ECC) lead.
Objective: To describe the use of IV infusion followed by oral administration of methylene blue (MB) to successfully treat recurrent methemoglobinemia (MetHb) in a young cat.Case Summary: A 6-month-old male Ragdoll cat presented with recurrent episodes of severe MetHb and was successfully managed with IV infusion of MB followed by a course of oral MB. Although the definitive cause of the patient's MetHb remains unknown, the cat made a full recovery following treatment without developing any significant side effects secondary to therapy and at the time of writing not had any further recurrences. Follow-up at 6 months found the patient in good health and without any long-term consequences.New Information Provided: To the authors' knowledge, this is the first report of a cat presented with severe MetHb quantitatively assessed via co-oximetry and successfully treated with both IV and oral administration of MB.
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