Biological Effects and Safety Practice Quiz

Question 1

The mechanical index is an indication of the likelihood for:

Faulty transducer

Heating

Faulty scanner

Cavitation

Answer 1

Cavitation

(bubbles caused by ultrasound collapsing causing tissue damage)

Question 2

The thermal index is an indication of the likelihood for:

Cavitation

Faulty transducer

Faulty scanner

Heating

Answer 2

Heating

Question 3

Means by which ultrasound energy could induce a biological effect include:

Cavitation

Sterilisation

Heating

Mechanical effects other than cavitation

Answer 3

Cavitation

Heating

Mechanical effects other than cavitation

NOT Sterilisation

Question 4

Two types of cavitation are ___________ and ___________ .

Small bubbles and large bubbles

Stable and transient

Stable and oscillating

Absolute and partial

Answer 4

Stable and transient

Question 5

ALARA translates to:

As low as reasonably acceptable

As long as resonably acceptable

As low as reasonably achievable

As long as reasonably allowed

Answer 5

As low as reasonably achievable