SVT and PVCs — NCLEX Cheat Sheet
When a fast rhythm needs treating
👤 By the CinnaRN Clinical Content Team
🕐 Updated 2026-08-31
🏷️ Physiological Adaptation
🔖 Free to read, print, and share
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Use this quick-reference guide to spot, treat, and prevent SVT and PVCs on the NCLEX. Keep it handy during review and on exam day!
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📒 The 1-minute cheat sheet
📌 Svt — In This Order
- Vagal manoeuvres if stable
- Adenosine — push FAST, expect a pause
- Beta blockers
- Calcium channel blockers — better in asthma
- Unstable? Synchronised cardioversion
✅ Pvcs — When To Care
- Isolated PVCs are usually not treated
- More than 6 a minute
- Pairs, runs, or multifocal
- R-on-T — can start V-tach
⚠️ Fix The Cause
- Low potassium or magnesium
- Caffeine, hypoxia, digoxin toxicity
✨Quick Tip
Focus on the highlighted numbers and the red-flag items — those are what the NCLEX tests most on svt and pvcs.
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