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1 A Cardiac EKG

1 A Cardiac EKG (Rates) Brady,Tachy, Arhythmia

QuestionAnswer
A normal heart rhythym is called? normal sinus rhythym
Why is it called sinus rhythym? because the electrical conduction starts at the sino-atrial node
Rate of normal sinus rhythym is? 60-100bpm (normal heart rate or atrial rate)
Rate of the AV node and bundle branches is? 40-60
Rate of the purkingie fibers is? 20-40 (Just remember normal sinus rhythym is 60-100 and it slows down as it goes through the heart. Subtract 20 through the bundle branches and subtract 20 through the purkingie fibers.)
Normally the atria (P waves) and the ventricles (QRS complexes) should beat at the same rate? True or False? True
If electrical conduction begins in the BB or ventricle-What would the rate be? 40-60bpm
A slow heart rate is called? sinus bradycardia
Rate of sinus bradycardia is? 40-60bpm
Can sinus bradycardia be normal? Yes in children or athletes
Does normal sinus brady need treatment? NO
When is sinus brady considered abnormal? When there are signs of low Cardiac Output
Signs of low Cardiac Output are? SOB, reduced LOC, cold, clammy, diaphoretic.
Does abnormal sinus brady need treatment? YES
Causes of Sinus Brady are? ICP,vagal stimulation(constipation), hypertrophy, beta blockers, rest/sleep, any disease that damages the SA Node, digoxin, CCB’s (Think Brady If Brad-C Acronyms spell Ivh, Bradc)
Med Treatment for Brady is? ADE for Brady, Atropine 0.5mg IVpush, Dopamine, Epi (Also hold any of the drugs that cause Brady – Na+ blockers(dig) and BB’s, and CCB’s)
If the heart is beating too slow and meds do not correct it what else might be needed? Temporary pacing until the cause is found. Or permanent pacing if sinus disease.
A fast heart rate is called? sinus tachycardia
Rate of Sinus Tachycardia is? 100-150bpm
What are causes of Sinus Tachy? Infection, Fever, Pain, Anxiety, Caffeine, Hypoxemia, Hypovolemia, y Brady meds (Think Tachy - IF PACHY)
A normal heart rate that fluctuates with the Pts. respirations is called? Arrhythmia
If arrhythmia is suspected what would the nurse do to observe this? Observe the rhythm while listening to respirations.
Created by: pjc0023 on 2008-04-02



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