Tachycardias: PSVT stand for paryoxysmal ventricular tachycardia. SVT stands for sustained ventricular tachycardia and VT is just a general term for a fast heart rate. None of them are great but sustained VT is probably the most dangerous because the heart can get fatigued quickly. However all forms of VT need treatment in order to avoid complications.
Answered 3/12/2017
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VT is very bad: Hi! SVT can be dangerous, but usually not as dangerous as VT. PSVT just means that the patient has bouts ("paroxysms") of SVT. Hope this helps!
Answered 2/15/2017
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