SECTION HOW TO USE Audiometer by mikeholy


									                                                                                      amplaid AM11

                         SECTION 2.2 HOW TO USE A.S.A.

             To open A.S.A., select, in the following sequence:
             1   START - SETTINGS - AMPLAID A.S.A. -
             2   Click on           The control panel of A.S.A. (see following figure) is displayed on

             To exit from A.S.A., click on Function and Exit.

2.2.1        A.S.A. control panel

                 NOTE: A.S.A. basic controls are detailed herewith; for AM11 dedicated
                 controls refer to Part 3 AM11 audiometer.
                 For other modules refer to A.S.A. Operator’s Manuals, for application in:
                 Audiometry: A171, A309, A311, A315, A319, A455, A460;
                 Impedance: A750, A770, A775 and PC based AM50;
                 Evoked Potentials - ENG - EMG: Mk12, Mk22 and EMG14;
                 Image Acquisition for Laryngoscopy, Otoscopy and Rhinoscopy.
                                                                                         amplaid AM11

                         SECTION 3.1 GENERAL INFORMATION

              The Amplaid AM11 is a PC based audiometer completely controlled by A.S.A. software.
              The AM11 is a breakthrough for several of its features:
              •   User friendly interactive “control panel”: once a test is selected, the control panel
                  literally guides the user in performing any test; active functions are highlighted and
                  available functions displayed. The figure portrays the AM11 control panel as
                  activated by default for Pure Tone audiometry.


              •     Innovative features designed for rapid and precise testing. As a unique feature
                    CH2 masking parameters are memorised and disclosed by a simple click of the
              •     Complete files of all tests performed along with patient’s data, history and comments
                    to tests and patient’s visit.
Section 3.1 General information

           Test Pre-set Menus:
           By default, pre-set menus provide active controls and available functions to perform the
           following audiometric tests:
           Pure Tone - Speech - A.B.L.B. - M.L.B. - S.I.S.I. - D.L.I. - Multi Frequency - Tone
           Decay - Loudness Scaling.

           By means of these menus and the two channel system, auditory assessment can be
           directed to:

           •   AC pure tone: with and without masking;
           •   BC pure tone: with and without masking;
           •   SAL test by BC masking: Rainville - SAL Test;
           •   BC tests: Bing Test - Sullivan Occlusion Index;
           •   Recruitment measuring methods: A.B.L.B. - M.L.B.- D.L.I.;
           •   Differential sensitivity to intensity: S.I.S.I. and high level S.I.S.I. - Tone Decay -
               STA (Supra Threshold Adaptation);
           •   Speech Audiometry: SRT (Speech Reception Threshold) - DS (Discrimination
               Score) - P-I Function (Performance Intensity Function) - SSW (Staggered Spondaic
               Words) - SST (Sensitised Speech Tests) - Competing Speech.
           •   Test for non-organic hearing losses: Lombard - Stenger;
           •   Multi-Frequency tests to investigate “notches” or “residual hearing”;
           •   Loudness Scaling tests for hearing aid selection and fitting.

                                                                                        amplaid AM11

              The following figures portray:

              Figure 3.1: a pure tone audiogram, where better ear (left) has been masked during right
              AC threshold determination.
              •   All symbols are automatically placed at administered intensity level for the frequency
                  under test, by clicking on Enter.
              •   Lock (highlighted) has been activated to lock contralateral masking level during right
                  ear test, based on left ear AC.
              •   Signal presentation is done in normal ON (N.ON highlighted).

                         Figure 3.1 Pure tone audiogram with contralateral masking

Section 3.2 Tests description

           Figure 3.2: in case of inconsistent audiograms, it may be useful to visualise the actual
           type of masking applied and its intensity level. The AM11 provides this unique feature.
           CH2 masking type and level are permanently stored. To view them, position the mouse
           on any point in the masked audiogram curve, and click on right-hand mouse control. All
           input and output settings are visualised.

              Figure 3.2 Visualising type and intensity of CH2 contralateral masking.


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