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IAHCSMM CRCST Exam Practice Tests & Test Prep - Free Test


Our free Certified and Registered Central Service Technician (CRCST) Practice Test was created by experienced educators who designed them to align with the official Healthcare Sterile Processing Association content guidelines. They were built to accurately mirror the real exam's structure, coverage of topics, difficulty, and types of questions.

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Certified and Registered Central Service Technician - Free Test Sample Questions

There are two major types of endoscopic instruments. They are:





Correct Answer:
rigid and flexible
the two primary classifications of endoscopic instruments are rigid and flexible. each type is designed for specific applications and offers unique advantages depending on the medical procedure being performed.

rigid endoscopes are constructed with a firm tube and typically provide a clearer image compared to flexible endoscopes. this clarity comes from the optical systems, such as rod lens systems, that are usually of higher quality and more directly aligned within the rigid structure. common examples of rigid endoscopes include cystoscopes, used for examining the bladder; resectoscopes, used in surgical procedures to remove tissue; and hysteroscopes, used for examining the inside of the uterus. rigid endoscopes are often used in procedures where direct access is possible and where the surgical area can be straightly approached.

flexible endoscopes, on the other hand, are made from a flexible tube and are particularly useful for navigating through curved or winding pathways within the body. they utilize fiber optic technology to transmit light and images back through the endoscope to the viewer. the flexibility of these instruments makes them ideal for examining areas that are not directly accessible with a rigid scope, such as the gastrointestinal tract or the lungs. flexible endoscopes are equipped with fiberoptic glass bundles, which allow light and image transmission around bends and corners. these scopes also contain a series of lenses and mirrors, as well as coils or springs and cables, which help in maneuvering and controlling the scope throughout the procedure.

both types of endoscopes play crucial roles in modern medicine, allowing for minimally invasive procedures that can lead to quicker recovery times and less pain for patients. rigid endoscopes are preferred when precision and clarity are critical, whereas flexible endoscopes are chosen for their ability to access difficult-to-reach areas. each type of endoscope is also typically equipped with channels to allow for the passage of surgical instruments or for the suctioning of fluids, further enhancing their utility in a wide range of medical procedures.