BLADDERSCAN BVI 9400, Operation & Maintenance Manual, Page: 53 / 84

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Operations & Maintenance Manual: Using the Device
USING THE DEVICE
Risk of explosion.
If you use the BladderScan BVI 9400 in the presence of flammable
anesthetics, the hazard of potential explosion exists.
WARNING
Potential patient hazard. To date, exposure to low‑power, pulsed diagnostic ultrasound
has not been shown to produce adverse effects. However, medical professionals should
use ultrasound only when clinically indicated, using the lowest exposure times possible to
obtain accurate measurements. The ultrasonic output of the BladderScan BVI 9400 is not
user adjustable and is limited to the minimum level necessary for effective performance. For
more information about the acoustic output levels of this device, see the chapter
Product
Specifications on page 65.
WARNING
Risk of patient injury and inaccurate measurements/results. When using the instrument,
be aware of the following conditions that can affect ultrasound transmission and decrease the
accuracy of exam results.
• Use care when scanning patients who have had suprapubic or pelvic surgery. Scar tissue,
surgical incisions, sutures, and staples can affect ultrasound transmission and accuracy.
• A catheter in the patient’s bladder may affect the accuracy of the bladder volume
measurement in two ways: 1) by introducing air into the bladder that may block the
ultrasound signal, and 2) by having the catheter‑retaining balloon interfere with the volume
measurement. However, the volume measurement may still be clinically useful if it is large
(detecting a blocked catheter, for example).
• Obesity may affect bladder volume measurements. Lift as much abdominal adipose tissue
out of the way of the instrument as possible. Apply more pressure to the probe to reduce the
amount of adipose tissue through which the ultrasound must pass.
Accuracy is compromised if the user does not obtain an optimal, repeatable image.
WARNING
Do not use the BladderScan BVI 9400 on:
• A patient who has open skin or wounds in the suprapubic area.
• A patient with ascites.
• A pregnant patient.
WARNING