ANSI Z136.3 - Hazard Evaluation and Classification

Question 1

What aspects of the HCLS influence the total hazard evaluation and thereby affect selection of the control measures to be applied?

Answer 1

1. The capability of the radiant energy of the HCLS to injure HCP or the patient or target
2. The environment in which the HCLS is used
3. The HCP who may use or be exposed to laser radiation
4. The delivery system, which is important to defining the extent of the NHZ
5. The non-beam hazards associated with the HCLS

Question 2

Normally, laser beam hazards exist ______________________.

Answer 2

Normally laser beam hazards exist only within the NHZ.

Question 3

What is the HCLS laser hazard classification scheme based on?

Answer 3

The capability of the radiant energy of the HCLS to injure HCP or the patient or target.

Question 4

The ______________________ will define the NHZ.

Answer 4

The laser output characteristics will define the NHZ.

Question 5

The ______________________ of the laser determines whether retinal, corneal, or skin hazards are the main safety consideration.

Answer 5

The wavelength of the laser determines whether retinal, corneal, or skin hazards are the main safety consideration.

Question 6

The manufacturer is required to supply the HCLS laser hazard classification in accordance with ______________________.

Answer 6

The manufacturer is required to supply the HCLS laser hazard classification in accordance with 21CFR1040.10 (see Appendix H).

Question 7

If a laser hazard classification is not available, the LSO should contact ______________________ to request the laser hazard classification.

Answer 7

If a laser hazard classification is not available, the LSO should contact manufacturer to request the laser hazard classification.

Question 8

If the laser hazard classification is not available from the manufacturer, or the system has been modified, the ______________________ shall determine the laser hazard classification.

Answer 8

If the laser hazard classification is not available from the manufacturer, or the system has been modified, the LSO shall determine the laser hazard classification.

Question 9

The LSO shall determine the NHZ for each and every ______________________ from information provided by the manufacturer, or from ______________________.

Answer 9

The LSO shall determine the NHZ for each and every alternative delivery system from information provided by the manufacturer, or from measurements, calculations.

Question 10

In lieu of doing measurements and calculations to determine a laser hazard classification, the LSO can ______________________.

Answer 10

In lieu of doing measurements and calculations to determine a laser hazard classification, the LSO can designate the entire room as the LTCA.

Question 11

The LTCA shall be established wherever a ______________________ or ______________________ HCLS is used.

Answer 11

The LTCA shall be established wherever a Class 3B or Class 4 HCLS is used.

Question 12

If the entire LTCA is not declared as the NHZ, the ______________________ shall be indicated by the LSO.

Answer 12

If the entire LTCA is not declared as the NHZ, the extent of the NHZ shall be indicated by the LSO.

Question 13

Potentially exposed people include all who may be in the vicinity of an HCLS and its emitted beam(s) including:

Answer 13

Potentially exposed people include all who may be in the vicinity of an HCLS and its emitted beam(s) including:
1. Patient
2. Laser Operator
3. Laser User
4. HCP