The ultrasonic cleaner contains a liquid medium to aid in the removal of debris from instruments. The solution should be changed

monthly.
every other day.
only when it looks dirty.
at the end of the day.


at the end of the day.

Rationale: at the end of the day.

Health Professions

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Which of the following statements about power sources of smoke detectors/alarms is MOST accurate?

a. Smoke detectors/alarms may be powered by batteries or household current. b. Smoke detectors/alarms may be powered only by dedicated electrical feeds. c. Smoke detectors/alarms are powered by a shunt from the municipal circuit. d. Hard-wired alarms are more reliable in areas with frequent power failures.

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