ECG Part 2 Flashcards
What does “sinus” indicate?
Presence of P, QRS, and T waves
What is sinus rhythm?
Normal rhythm, P wave 0.12-0.20, QRS 0.12
What is Sinus Tachycardia?
> 100 bpm
What causes Sinus Tachycardia?
- Caffeine
- Grave’s Disease (hyperthyroidism)
- Stress/anxiety
What is the DOC for Sinus Tachy?
- Beta Blockers
- Calcium CB
- Vagal stimulation
What is Sinus Bradycardia?
< 100 bpm
What causes Sinus Brady?
- Myxedema coma (hyothyroidism)
- Aging
- Normal in athletes
- Digoxin, Beta Blockers, Calcium CB
What is the DOC for Sinus Brady?
- Atropine Sulfate
- Pacemaker
What are the indications that a pacemaker is failing?
- Hiccups
- Headache
- Light headedness
What is atrial flutter?
Absent P waves, regular QRS intervals
What is the description of atrial flutter?
Sawtooth appearance
What is the DOC for atrial flutter?
PAQ
- Procainamide
- Aspirin / thrombolytics
- Quinidine
What is atrial fibrilation?
Absent P waves, irregular QRS intervals
What is the description of afib?
Quivering appearance
What is the DOC for afib?
PAQ
What is supraventricular tachycardia?
P waves are invisible, QRS waves are narrow
What is the DOC for SVT?
Adenosine
What is the initial dose of adenosine? The second dose?
6 mg, 12 mg
How is adenosine administered?
IV Push, followed with 20 cc of PNSS
How long should you observe the patient for after each dose of adenosine?
1-2 minutes
What is the next step if adenosine does not treat SVT?
Synchronized Cardioversion
What is monomorphic vtach?
Absent waves, uniform
What is polymorphic vtach?
Absent waves, non-uniform
What is the DOC for monomorphic vtach with pulse?
Lidocaine