FREE MRSO ASTM F2503 Device Labeling Questions and Answers

Question 1

What does the ASTM F2503 'MR Unsafe' symbol, a red circle with a diagonal line over a magnet, signify?

Accepted Answer

The device poses a known hazard in all MR environments

Answer

The device is safe only under very specific conditions

Answer

The device is MR Safe and has no magnetic interaction

Answer

The device has not yet been tested for MR safety

Question 2

An infusion pump is labeled 'MR Conditional.' What is the most important action an MRSO must take before allowing it into the magnet room?

Accepted Answer

Verify the specific conditions of use from the manufacturer's labeling/IFU

Answer

Assume it is safe for all scanners up to and including 3.0T

Answer

Place the pump as far from the magnet bore as possible and hope for the best

Answer

Ensure the patient is disconnected from the pump during image acquisition

Question 3

Which of the following items would most likely be labeled 'MR Safe'?

Accepted Answer

A non-ferromagnetic, non-conductive plastic basin

Answer

A modern, weakly magnetic titanium aneurysm clip

Answer

A battery-operated 'MR-compatible' pulse oximeter

Answer

A high-grade stainless steel IV pole

Question 4

The labeling for an 'MR Conditional' patient monitor specifies 'For use at 1.5T only, must be placed outside the 100 Gauss line.' What does this mean for a 3.0T facility?

Accepted Answer

The monitor must not be brought into the 3.0T magnet room

Answer

The monitor can be used at 3.0T if it is kept outside the 200 Gauss line

Answer

The monitor can be used at 3.0T, but only for a short duration

Answer

The monitor's software needs to be updated by the manufacturer for 3.0T use

Question 5

An unmarked, metallic tool is found in a clinical area. How should it be treated with respect to MR safety?

Accepted Answer

It must be assumed to be MR Unsafe until proven otherwise

Answer

It can be brought into Zone III for testing with a powerful handheld magnet

Answer

It is safe to bring into the magnet room if it appears to be made of aluminum

Answer

It is considered MR Conditional by default until labeled

Question 6

A patient has an orthopedic implant with an 'MR Conditional' label. The MRSO's primary responsibility is to:

Accepted Answer

Verify the exact make and model and consult its specific MR conditions for the planned scan

Answer

Inform the patient that all conditional implants are generally safe at 1.5T

Answer

Refuse to scan the patient to avoid any potential liability or risk

Answer

Proceed with the scan using only low SAR pulse sequences by default