F7.iv · Diffusive Transfer of Respiratory Gases

Official V4 objective

Define diffusing capacity and its measurement.

1 SAQ topic 1 SAQ appearance 0 VIVA stations

Current · V5 (2025) → C7.v

Written examination

SAQ history

1 appearance

Oxygen Diffusion

1 exam appearance

2012A Q20

List the physiological factors affecting the diffusion of oxygen across the alveolar membrane (70% of marks). Describe how this changes with exercise (30% of marks).

50%

Oral examination

VIVA history

0 stations

No mapped VIVA history for this objective.

Sources: objective text from the relevant CICM syllabus; historical SAQ and VIVA wording from CICM examiner reports.