ECG 2

Signalment: Ten-year-old female-spayed American cocker spaniel cross (Claire)

Presenting Complaint: Episodes during which her legs splay out after which she struggles to stand again

ECG 2

25 mm/sec; 1 cm = 1 mV

Quiz

1. What rhythm abnormality occurs with the fifth complex?

2. What rhythm abnormality occurs after the fifth complex?

3. How long does this rhythm abnormality last?

4. What would be the most appropriate term for the sixth complex (the first complex after the pause)?

5. Atropine (0.04 mg/kg) was administered subcutaneously and an ECG repeated 30 minutes later. It was unchanged. What is your diagnosis?

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