www.unm.edu
Help!
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| show | 300, 150, 100, 75, 60, 50
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| how do you calculate HR using R to R meathod | show 🗑
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| if r to r cycles vary, use the 6 second method. how do you do this? | show 🗑
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| how many large boxes are in a 6 sec strip? | show 🗑
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| show | V1 and V2
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| show | in RBBB, the QRS comples has 2 r waves which gives a double-peaked appearance in V1 and V2
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| show | I, V5 and V6 the S wave has a slurred appearance or the end of the wave doesnt return sharply back up to baseline
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| where do you look for a LBBB | show 🗑
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| show | QRS is wide, mostly upright and t waves inverted in leads V5, V6, I
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| show | V1-V3 if the QRS complexes are mostly negative (like big Q waves) and the t waves are upright then confirmation of LBBB
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| show | at least 1 mm wide and greater than 1/3 the R wave
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| what defines ST elevation? | show 🗑
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| where do you look for inferior MI? | show 🗑
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| where do you look for anterior MI? | show 🗑
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| where do you look for posterior MI? | show 🗑
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| show | I, AVL, V5, V6 sig Q waves in I and AVL is an old high lateral MI wheras ST segment elevation is called an acute high lateral MI. V5&V6 look at the "low" lateral surface so Q waves or ST elevation in these leads show old and acute "low lateral MI"
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| show | 0.12-0.20
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| show | <0.12
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| how do you measure st segment | show 🗑
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| how do you define 1st degree AV block? | show 🗑
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| show | successively longer PRI until one qrs fails
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| show | PRI normal or prolongeds, PRI do not lengthen , sudden dropped QRS w/o prior changes
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| how do you define 3rd degree AV block? | show 🗑
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| what does a RBBB look like on an EKG? | show 🗑
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| show | two R waves, lazy slope in between the Rs - not as defined
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