Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.

Remove Ads
Don't know
Know
remaining cards
Save
0:01
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards




share
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

ekg 12 lead

www.unm.edu

QuestionAnswer
what are the values for triplets HR technique? 300, 150, 100, 75, 60, 50
how do you calculate HR using R to R meathod count total small boxes X 0.04
if r to r cycles vary, use the 6 second method. how do you do this? count the number of complete QRS complexes in a 6 second strip and multiply by 10
how many large boxes are in a 6 sec strip? 30
where do you look for a RBBB V1 and V2
Whaat defines a RBBB? in RBBB, the QRS comples has 2 r waves which gives a double-peaked appearance in V1 and V2
what is an additional way to confirm RBBB diagnosis I, V5 and V6 the S wave has a slurred appearance or the end of the wave doesnt return sharply back up to baseline
where do you look for a LBBB V5, V6, I
Whaat defines a LBBB? QRS is wide, mostly upright and t waves inverted in leads V5, V6, I
what is an additional way to confirm LBBB diagnosis V1-V3 if the QRS complexes are mostly negative (like big Q waves) and the t waves are upright then confirmation of LBBB
what defines a "significant Q wave"? at least 1 mm wide and greater than 1/3 the R wave
what defines ST elevation? 1 mm above baseline in limb lead, 2 mm above baseline in chest lead, 0.08 sec to right of J point. Lok for in towo or more leads facing same area
where do you look for inferior MI? II, III, AVF
where do you look for anterior MI? V1-V4 (ST segment elevation in V1 and V2 are slightly elevate.. do not over diagnose)
where do you look for posterior MI? V1 and V2 for tall r waves that will not be accompanied by right axis deviation (hard to diagnose)
where do you look for lateral MI? 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"
what is the normal PR interval measure 0.12-0.20
what is the normal QRS measure? <0.12
how do you measure st segment if difficult to find S wave, go 0.04 sec past R wave to determine S wave. Go 0.08 seconds from s wave to analyze st segment
how do you define 1st degree AV block? PRI > 0.20
how do you define 2nd degree, type 1 Mobitz AV block? successively longer PRI until one qrs fails
how do you define 2nd degree, type 2 AV block? PRI normal or prolongeds, PRI do not lengthen , sudden dropped QRS w/o prior changes
how do you define 3rd degree AV block? no association between atria and ventricles. depolarizing independently
what does a RBBB look like on an EKG? pointed, defined, distinctive R peaks
what does a LBBB look like on an EKG? two R waves, lazy slope in between the Rs - not as defined
Created by: heatherenigma