Certified Ophthalmic Medical Technologist (COMT) Practice Exam

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What are the most common causes of corrosion on surgical instruments?

Inadequate cleaning and drying
Overexposure to light
Poor material quality
Frequent use without maintenance

The correct answer is: Inadequate cleaning and drying

Inadequate cleaning and drying is the most common cause of corrosion on surgical instruments. When surgical instruments are not properly cleaned after use, residues such as blood, saline, or other bodily fluids can remain on the surface. These residues can create an environment conducive to corrosion, especially if the instruments are not dried thoroughly. Moisture combined with organic matter can lead to the formation of rust or other forms of corrosion on metal instruments. Moreover, if instruments are left damp for prolonged periods, or if they are stored in a moist environment, the risk of corrosion increases significantly. Proper cleaning protocols, including thorough rinsing and drying, are essential to preserve the integrity of surgical instruments and to prevent corrosion that could impair their function or lead to contamination during surgical procedures. The other factors mentioned may contribute to the degradation of instruments, but inadequate cleaning and drying is a primary and crucial factor that can directly lead to corrosion issues.