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Mastering Use of the CR220 for Intraoperative Cochlear Implant Testing

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1.  Name one benefit of the CR220 Provides confidence that the implant is functioning properly. Fast and easy intra-operative measurements. Immediate operational feedback. All of the above

2.  What equipment is required for the CR220? CP910 Sound Processor with Disposable Batteries CP810 Sound Processor with Disposable Batteries. CP910 with Rechargeable Batteries. CP810 with Rechargeable Batteries.

3.  In the operating room, who can run the measurements with the CR220? Audiologist Surgeon Nurse All of the Above

4.  What preparation is required to use the CR220? Ensuring CR220 and Batteries for the Sound Processors are charged. Updating the software to Custom Sound version 3.2 Bringing the laptop to the operating room. Verify that disposable batteries are in the sound processor.

5.  What do a black and a blue electrode color mean when testing Auto NRT? Black identifies a open circuit and blue indicates a short circuit. Black indicates that the electrode has not yet been tested and Blue identifies a functioning electrode. Black indicates an open electrode and blue identifies that NRT has been performed but followed by an absent response. Black identifies a short circuit and blue indicates an open circuit.

6.  When importing the data from the CR220 into Custom Sound, what screen do you need to be on? Open/Create Maps Perform AutoNRT Home Page Measure Impedances

7.  Are intraoperative measurements performed with the CR220 equivalent to those performed in Custom Sound? No. They are estimates only. Yes, but only for adults. Yes

8.  Name 3 key benefits of AutoNRT? Accurate determination of neural response. Automated collection of neural response. Rapid collection of neural response. All of the above.

9.  Name one way an Audiologist might utilize the AutoNRT recordings in clinical programming: To determine residual hearing status. To create a Map for a 12 month old child not yet able to give a conditioned response. To predict sound field thresholds. To set counted threshold levels.

10.  List key benefits of the CR220: Reduced duration of anesthesia Less time consuming for the person operating the CR220. Immediate operational feedback of the implant. All of the above.