How should mobilization be adjusted during ARDS to manage oxygenation?

• A. Cease all activity
• B. Pace activities with oxygenation and adjust as tolerated
• C. Maximum FiO2 always
• D. Proceed with full intensity immediately

Answer: (D)

In ARDS, how you mobilize is guided by oxygenation. The goal is to keep activity at a level that the patient’s current oxygenation can support, and then slowly progress as it tolerates or improves. This means you pace activities to what the lungs and ventilator can safely handle at that moment, rather than pushing hard from the start or stopping all activity.

Why this approach fits best: mobilization provides benefits like improved diaphragmatic function, better clearing of secretions, and prevention of deconditioning, but it must be matched to real-time oxygenation. Monitor SpO2 (or PaO2/FiO2), ventilator settings (FiO2, PEEP), and hemodynamics during activity. If oxygenation becomes unstable, pause, reassess, and scale back the intensity or rest. As stability allows, you gradually increase activity, maintaining adequate oxygen delivery throughout.

The other ideas aren’t ideal: stopping all movement ignores the deconditioning risks and misses mobilization benefits; insisting on maximum FiO2 always isn’t necessary or safe and doesn’t address functional goals; jumping into full-intensity activity immediately can precipitate hypoxemia or instability.