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CET NHA Exam With Right Answers
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---17April 20252024/2025A+
- What is the primary pacemaker? - SA Node 
 
Symptoms of Digitalis toxicity - -Yellow Vision 
-Nausea 
-Vomiting 
-Drowsiness 
 
Sinus Rhythm PR interval - 0.12-0.20 seconds 
 
Sinus rhythm QRS duration - 0.04-0.10 seconds 
 
SVT Tachycardia p wave - may be hard to find; if present, one per QRS complex 
 
Polymorphic Ventricular Tachycardia P wave - none 
 
V-fib ventricular rate - Greater than 300 bpm 
 
First Degree Heart Block - Slow or delayed conduction through AV node 
 
Second Deg...
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