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NUR 546 EXAM I EKG Dysrhythmias & Pacemakers Latest Updated
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NUR 546 EXAM I EKG Dysrhythmias & Pacemakers Latest Updated...
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NUR 546 EXAM I EKG Dysrhythmias &Pacemakers Latest Updated
0.12-0.20s, time taken for the electrical impulse to go down from the atria through the
AV node into the ventricles-ANSWER PR interval
<0.12s, time taken by the electrical impulse to travel down the ventricles-ANSER QRS
interval
BP: <120/80 mm Hg,
HR: 60-100 bpm,
RR: 12-20,
O2: 95%-100%,
T (oral): 96.8-100.4 F (36-38 C),
MAP: 80 mm Hg - ANSWER Normal vital signs in adults
Sinus Tachycardia
Heart rate >100 bpm - ANSWER
Bradycardia
Heart rate <60 bpm - ANSWER
Atrial Fibrillation
, Irregular P-waves, usually fast, ALWAYS irregular (chaotic baseline). Can be controlled
or uncontrolled - ANSWER
Atrial Flutter
Regular or Irregular 'sawtooth' P-waves, controlled (<100bmp) or uncontrolled
(>100bpm). - ANSWER
SVT
Abnormal or absent P-wave, always very FAST and NARROW. May be sustained or an
unsustained "run." - ANSWER
1st degree AV Block
Consistent *PR interval >0.20 sec*, delay in conduction at the AV node. - ANSWER
2nd degree AV Block type 1
(AKA Wenekebach)
PR interval long, longer, drop!! The drop is a P wave not followed by a QRS, then the
pattern resumes. - ANSWER
3rd degree AV block "complete heart block"
Uniform and regularly spaced p-waves with *inconsistent PR intervals*. *Slow
ventricular rate of 20-40* bpm. The *QRS is WIDE* >0.12s and rate is SLOW. - ANSWER
Junctional Rhythm
Conduction begins at AV node or Bundle of His, *P waves are absent, inverted, or found
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