Figure 5
The RED transducer is placed on the infant’s RIGHT ear. The BLUE transducer
is placed on the LEFT ear. See Figure 5 above.
Step 5. Select screening parameters: Select either 35 dBnHL or 40 dBnHL screening (if 40
dB option is enabled). Select Simultaneous (not available for 40 dB), Sequential,
Right-only, or Left-only screening. Use the up/down arrow keys to scroll and select
the parameters then click on the OK key to proceed.
35 dBnHL screening only (default setting) 40 dBnHL screening option enabled
Step 6. Start Screening/Check Impedances: Test immediately begins after screening
parameters are selected. Monitor the impedances at each sensor location. Insure that
the impedances are less than 7 kOhms for optimal screening. If impedances are
between 8 and 11 kOhms, an “Impedances Marginal” message appears. Select the
OK key to initiate screening. If impedances are 12 kOhms or greater, screening will
pause and the message below appears. Re-prep infant as necessary to lower
impedances.
Natus Medical • www.natus.com Page 8 of 12 P/N 051179E
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