Clinical Sciences Question of the day

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May 15, 2025

BCSE

A four-year-old male great Dane recovering from emergency surgery to correct a gastric dilatation-volvulus is still quite weak and depressed after 24 hours.

Auscultation of the heart reveals a cardiac arrhythmia, seen on the electrocardiogram show below.

Which of the following is the best treatment for this arrhythmia?

Vtach

A - Administer dextrose and insulin to decrease the potassium level

B - Perform cardiac compressions and shock the heart with 1 joule/kg

C - A bolus of lidocaine followed by a continuous infusion

D - Apply pressure to both globes to slow the heart rate and allow sinus rhythm to restar

E - Give a test dose of atropine to see if the dysrhythmia goes away

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