Final answer:
The nurse would recommend an oxygen tent for a child uncomfortable with other oxygen delivery methods like a mask or cannula, as it allows for movement while providing oxygen.
Step-by-step explanation:
The nurse would expect to recommend an oxygen tent for a child who will not leave a facemask or cannula in place. An oxygen tent can provide a controlled concentration of oxygen while allowing freedom of movement, which can be particularly beneficial for children who may be non-compliant or uncomfortable with using a facemask or nasal cannula. In the case of the other patients mentioned, alternative methods such as CPAP devices, mechanical ventilation, or simply bed rest with oxygen supplementation as appropriate could be considered depending on their specific conditions such as COPD, comatose states due to head injury, or immobility.