Author: Charlotte Elliott, Amelia Devine / Editor: Sarah Edwards / Reviewer: Charlotte Elliott / Codes: GC1, GP9, SLO3, SLO8 / Published: 23/04/2021 / Reviewed: 21/04/2025
You are finishing seeing a sick patient in majors when an ECG is presented to you which was taken at ambulance triage. ‘Will you have a look at this please doc?’.
It is for a 40-year-old female with a past medical history of alcohol excess who has been vomiting for at least 48 hours.
The ECG is presented in Figure 1.1

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Question 1 of 3
1. Question
What is the most important blood test to request?
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2. Question
Which ECG change would you not expect to see in a patient with hypokalaemia?
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Question 3 of 3
3. Question
U waves can be seen in all but which of the following:
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