Ekg lecture
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| show | Dominant pacemaker with intrinsic rate of 60-100 bpm
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| show | Back up pacemaker. intrinsic rate of 40-60 bpm
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| show | back up pacemaker with 20-45 bpm
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| show | SA-AV-Bundle of His-bundle branches-purkinje fibers.
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| show | atrial depolarization
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| show | Ventricular depolariztion
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| show | Ventricular repolarizaton
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| show | atrial and ventricular repolarization, should be at baseline,
-Tall or spiked waves=Hyperkalemia,MI
-elevation=infarction
-depression=ischemia
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| show | -Horizontally
small box=.04s
large box=.20s
-vertically
1 large box=0.5mv
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| What is duration of PR interval? | show 🗑
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| What is duration of QRS interval? | show 🗑
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| show | not elevated or depressed.
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| show | 60-100bpm
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| bradycardia=? | show 🗑
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| show | >100bpm
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| Flutter=? | show 🗑
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| show | Too fast to count
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| How do you estimate heart rate? | show 🗑
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| http://pediatriccardiology.uchicago.edu/PP/Images/Nsr.jpg | show 🗑
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| http://www.cardionetics.com/cardiology/_cardioimages/rhythms/ecg_sinus_bradycardia_1.jpg | show 🗑
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| http://www.bannerhealth.com/NR/rdonlyres/5CFF4A7B-01B5-4B7A-BF9B-02737DF18C02/24236/tachycardia.jpg | show 🗑
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| http://www.ambulancetechnicianstudy.co.uk/images/Flutter.gif | show 🗑
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| show | atrial fibrillation 400-700bpm
chaotic and irregular rhyth.
causes: hypoxia,ischemic heart disease, MI
Tx:O2 digoxin, cardioversion,
beta blockers
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| http://www.txai.org/img/edu/PVC.jpg | show 🗑
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| show | VTach.
Rate 100-200bpm rhythm regular.
no P waves, causes same as PVc
Tx: defib. if no pulse, lidocaine or amiodorone and cardioversion if pulse present.
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| show | V Fib
Rate:NONE rhythm: chaotic
pQRS wav: absent
No cardiac output or pulse
Causes: acute MI, untreated Vtach,hypothrermia, electrolyte imbalance, electric shock.
Tx: Defib., CPR, O2
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| http://www.rnceus.com/ekg/asystole.gif | show 🗑
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| show | decreased blood flow to the tissue;depressed or inverted T wave
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| what is meant by injury? | show 🗑
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| show | death of tissue; the end result of ischemia or injury.
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