EKG Rhythm Strip Quiz 52: Heart Blocks
Identify the following heart blocks. 1. a. 1st degree block b. 2nd degree block type I c. 2nd degree block type II d. 3rd degree heart block 2. a. 1st degree block b. Mobitz 1 c. Mobitz 2 d. Complete heart block 3. a. 1st degree block b. 2nd degree block type I c. 2nd degree block type II d. 3rd degree heart block 4. a. 1st degree block b. Mobitz 1 c. Mobitz 2 d. Complete heart block 5. a. 1st degree block b. 2nd degree block type I c. 2nd degree block type II d. 3rd degree heart block 6. a. 1st degree block b. 2nd degree block type I c. 2nd degree block type II d. 3rd degree heart block 7. a. 1st degree block b. Mobitz 1 c. Mobitz 2 d. Complete heart block 8. a. 1st degree block b. 2nd degree block type I c. 2nd degree block type II d. 3rd degree heart block 9. a. 1st degree block b. 2nd degree block type I c. 2nd degree block type II d. 3rd degree heart block 10. a. 1st degree
Nice strips! I often end up correcting folks who confuse coarse VF for TdP. Most people would have allowed a VF or two to slip into the mix, but I think these are all legit torsades. #4 is the one that's borderline—it's almost a touch too disorganized and a touch too fast for typical TdP—but I agree that it probably still is. Thanks for your consistently excellent collections of tracings.
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