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ABC and QRS are supplementary angels.
If the measure of ABC = 91. What is the measure of QRS?

User Wiener
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Answer:A normal QRS complex measures 0.06 to 0.12 seconds which is 1.5 to 3 small boxes on the EKG strip. When you measure the QRS complex you start by measuring at the END of the PR interval to the END of S-wave.

Explanation:

User TheBook
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71 is the right answer
User Alexander Meise
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