Infection Control · single question
Cavitron (ultrasonic scaler) is contraindicated in which patient group?
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Correct answer: B. Patients with cardiac pacemakers, active airborne infectious disease, or respiratory compromise
Cavitron contraindications: (1) Cardiac pacemakers — electromagnetic interference may disrupt device function; (2) Active airborne infectious disease (TB, measles) — creates infectious aerosols; (3) Respiratory compromise — aerosols can exacerbate breathing difficulties; (4) Implanted electronic devices. Newer pacemakers may be safe — always check with cardiologist.
- A. ❌ Controlled hypertension is NOT a contraindication for ultrasonic scaling.
- B. ✅ Pacemakers, active airborne infection, and respiratory compromise are all Cavitron contraindications.
- C. ❌ Well-controlled diabetes is not a contraindication for ultrasonic scaling.
- D. ❌ Aspirin therapy is not a contraindication for ultrasonic scaling.
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