ANATOMY
LIMB VASCULATURE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Lead 1 has a reading of 17 mmHg and Lead AVF has a reading of 22 mmHg. Does this patient have LVH?
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Yes
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No
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Not enough information
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None of the above
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Explanation:
Detailed explanation-1: -Women: 4 – 8 mm. Men: 5 – 9 mm.
Detailed explanation-2: -If lead I is negative and lead aVF is positive, then there is RAD. And, if both leads I and aVF are negative, then the axis falls within the extreme axis range. This quadrant approach is summarized in Figure 3. One issue with this method is that it only gives a close approximation to the true axis.
Detailed explanation-3: -Conclusion: ECG criteria for the diagnosis of LVH had a relatively low sensitivity, and high specificity. The accuracy was in the range of 0.71-0.80.
There is 1 question to complete.