VT Monomorphic features include

• A. QRS complexes of varying height.
• B. P waves before each QRS.
• C. QRS complexes of the same height and shape.
• D. No QRS complexes.

Answer: (C)

Monomorphic ventricular tachycardia shows uniform ventricular activation from beat to beat, so the QRS complexes maintain the same appearance each time. Because the depolarization path is the same, the QRS morphology stays consistent, meaning the complexes have the same height and shape across the strip. This consistent morphology is what distinguishes monomorphic VT from rhythms where the QRS shape varies from beat to beat (polymorphic VT) or where P waves clearly precede each QRS or where there are no QRS complexes at all. In VT, the QRS is typically wide due to the ventricular origin, reinforcing why a single, unchanging QRS shape and height across beats characterizes monomorphic VT.