Module 16 2024

17/10/2024

The basics of risk evaluation

Occurrence:

Occurrence No.

Common Term

Likelihood

1

Improbable

≤ 1 in 150,000

[≤0.0007%]

2

Remote

≤ 1 in 15,000 to > 1 in 150,000

[≤0.007% to >0.0007%]

3

Moderate

≤ 1 in 400 to > 1 in 15,000

[≤0.25% to > 0.007%]

4

High

≤ 1 in 20 to > 1 in 400

[≤ 5% to >0.25%]

5

Very High

> 1 in 20

[>5%]

10 in 100 patients (10%) OR 10 in 1000 electrodes (1%) OR 10 in 16,000 contacts (0.0625%)

WHAT IS THE OCCURRENCE OF THE HAZARD?

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The basics of risk evaluation

RPN:

Risk Evaluation Matrix

Negligible Minor

Moderate Serious

Critical

Severity:

1

2

3

4

5

Very High

5 ALAP

ALAP Undesirable Undesirable Undesirable

High

4 Acceptable

ALAP

ALAP Undesirable Undesirable

Moderate

3 Acceptable Acceptable

ALAP

ALAP Undesirable

Probability

Remote

2 Acceptable Acceptable Acceptable

ALAP

ALAP

Improbable

1 Acceptable Acceptable Acceptable

ALAP

ALAP

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