BLADDERSCAN BVI 3000, Operation & Maintenance Manual, Page: 55 / 72

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Operations & Maintenance Manual: Maintenance & Troubleshooting
PROCEDURE 6. VERIFY INSTRUMENT ACCURACY
Measurement accuracy is dependent upon aiming the scanhead so that the bladder falls entirely within the
measurement cone and following the proper instructions for use. When confirming measurement accuracy,
ensure that you are measuring the bladder volume according to the instructions in this manual.
1. According to the instructions in the chapter Using the Instrument on page 24, measure the pre‑void
volume of a bladder.
2. Void or catheterize into a measurement beaker. This is called the voided volume .
3. According to the instructions in the chapter Using the Instrument on page 24, measure the post‑void
volume of the bladder. This checks for any post‑void residual (PVR).
4. Subtract the post‑void measurement collected in Step 3 from the pre‑void measurement collected in Step 1.
This is called the measured volume .
5. Compare the voided volume collected in Step 2 to the measured volume from Step 4.
If the voided volume is less than 699 ml, the measured volume should be within ± (20% + 20 ml).
If the voided volume is more than 699 ml, the measured volume should be within ± (25% + 25 ml).
6. If the measured volume is not within the accuracy range, contact Verathon Customer Care or your local
representative.
DEVICE DISPOSAL
Disposal of this device in accordance with WEEE requirements can be coordinated through your Verathon
®
Service Center.