Document ID: chunk:federal_register_of_legislation:F2016L01332:reg:80:p2
Version: federal_register_of_legislation:F2016L01332
Segment Type: reg
Provision Reference: reg 80 (pt 2/3)
Character Range: 59606–63416

or more of the predicted, then the impairment rating is defined as NIL

"%FEV1" means measured FEV1 expressed as a percentage of predicted FEV1. "%FVC" means measured FVC expressed as a percentage of predicted FVC.
 "%MEF" means measured MEF25-75    expressed as a percentage of predicted
 MEF25-75 .

 In each case the percentage is to be rounded to the nearest integer before the formula is applied.

 If these formulas are applied the resulting impairment rating is always to be rounded to the nearest integer.

 Step 5: Calculate the total accepted cardiorespiratory functional impairment rating.

 At this stage there will usually be an impairment rating derived from effort tolerance information and there may also be an impairment rating derived from measurements of lung function.  These must be combined into a single cardiorespiratory functional impairment rating. The method by which that is to be done is set out in Table 1.5.

 For the purposes of Table 1.5, the following abbreviations have been used:

Abbreviation           Meaning

"FI"           means   cardiorespiratory functional impairment rating.

"No FI"        means   a cardiorespiratory functional impairment rating cannot be calculated from either effort tolerance information or measurements of lung function.

"METs"         means   the cardiorespiratory functional impairment rating is to be taken  as the impairment rating derived from METs alone.

 "Spirometry"                                                                   means   the cardiorespiratory  functional impairment rating is to
                 be taken as  the impairment  rating derived from
                 measurements of respiratory function.

 "average of                                                                    means   the average of the cardiorespiratory functional impairment
 METs and                                                                               rating derived from METs alone and the cardiorespiratory
 Spirometry"                                                                            functional impairment rating derived from measurements
                                                                                        of respiratory function alone                                using the ordinary formula
                 for averaging two quantities or by use of the nomogram
                 in Figure 1c. In either case, the result is to be rounded to
                 the nearest integer.

Procedural
Table 1.5

          CARDIORESPIRATORY FUNCTIONAL IMPAIRMENT

                                                       No
                          Respiratory disease present  respiratory disease
                          Spirometry
 Spirometry obtainable   not obtainable
Cardiac disease present  METs data obtainable          FI = higher of METs and Spirometry    FI = METs  FI = METs
 METs data                FI = Spirometry               No FI                               No FI
 not obtainable
No cardiac disease       METs data obtainable          FI = average of METs and Spirometry   FI = METs
 METs data                FI = Spirometry               No FI
 not obtainable

In applying this table, both accepted and non­accepted conditions are to be taken into account.

No age adjustment permitted for this table

 From Table 1.5 it will be seen that:

   + if cardiac conditions exist in the absence of respiratory disease, cardiorespiratory functional impairment should be measured by effort tolerance alone;

   + if  respiratory conditions  exist in the absence  of cardiac  disease, the cardiorespiratory functional impairment rating is the rounded average of (i) impairment as measured by effort  tolerance, and (ii) impairment as measured by spirometry;

   + if