Welch Allyn RETeval-DR, Directions For Use Manual

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Prepare the patient
The RETeval-DR sensor strips are specific for the right and left eye. Erroneous results
will occur if the sensor strips are used with the wrong eye; timings will be wrong by
about 18 ms. If you suspect the sensor strips were used with the wrong eye, repeat the
test with a new pair of correctly applied sensor strips. The sensor strips packaging has a
pictograph to guide you in proper placement.
WARNING
Patient injury risk. Dispose of single-use components (for
example, sensor strips) after using them one time.
RETeval-DR sensor strips are to be used for a single examination only. Sensor strips may
not adhere well if re-used, causing an excessively high electrode impedance and
potentially preventing the device from producing a result.
1. Scan a sensor strip packet barcode by placing the device eyecup on or very near the
barcode. Scanning is automatic and does not require you to press the joystick.
The barcode is designed to prevent use of expired sensor strips and prevent reuse
across multiple examinations. During the same examination, however, adjustment to
sensor strip positioning and one retest on the same patient can be conducted.
2. Ask the patient to remove their eyeglasses. Contact lenses may be left in place.
3. Apply the right and left sensor strips as shown below.
26 Perform a test Welch Allyn
®
RETeval-DR
™