Certified Instrument Specialist (CIS) Practice Exam 2026 - Free CIS Practice Questions and Study Guide

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What is the primary use of iris scissors?

To cut large, tough tissue

To remove dead tissue and cut in small delicate areas

Iris scissors are specifically designed for precision cutting in delicate areas, making them ideal for tasks that require fineness and accuracy. Their small, sharp blades allow for intricate work, which is essential when removing dead tissue or operating in confined spaces where larger instruments would be unwieldy. This precise control is crucial in surgical procedures, especially in ophthalmology and other fields where delicate tissues are present.

Options related to cutting large, tough tissue or clamping blood vessels do not align with the intended function of iris scissors. Clamping tools or larger surgical scissors serve those purposes better. Similarly, holding tissue and stopping bleeding typically involves clamps or hemostatic devices designed for those specific tasks, rather than the delicate cutting function of iris scissors.

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To clamp blood vessels

To hold tissue and stop bleeding

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