I. Respiratory: 1. Full-time ventilator support - Reza remains on full-time ventilator support for the first six weeks of his recovery. The doctors carefully monitor his lung function and gradually reduce the support as he shows signs of improvement. 2. Part-time ventilator support - After three months, Reza is able to breathe without the ventilator for most of the day, but still requires some assistance during the night or when he exerts himself physically. 3. Part-time oxygen support (with tracheostomy) - Around the five-month mark, Reza's tracheostomy is removed, and he only requires occasional oxygen support during periods of strenuous activity or in case of respiratory infections. 4. Part-time oxygen support (tracheostomy removed) - By the end of his first year of recovery, Reza no longer needs constant oxygen support. However, he keeps a small portable oxygen tank handy for emergencies and high-altitude situations. II. Mobility: 1. Full-time bed rest - For the first two weeks after the accident, Reza is kept on strict bed rest to allow his injuries to heal and prevent any further damage. 2. Assisted wheelchair mobility - After three months, Reza starts using a wheelchair with the assistance of a physical therapist. He is unable to propel himself and requires help with maneuvering and transfers. 3. Independent wheelchair mobility - By six months, Reza becomes proficient in using a wheelchair independently. He learns various techniques to move around, including wheelies and ramps. 4. Limited assisted walking - One year into his recovery, Reza can take a few steps with the support of crutches or a walker. However, he still needs assistance for longer distances or when fatigue sets in. 5. Full-time assisted walking - After two years of rehabilitation, Reza is able to walk with the assistance of a cane or a supportive brace. While he still experiences occasional weakness or balance issues, he can walk for longer periods without assistance. 6. Limited unassisted walking - By the end of his third year of recovery, Reza is able to walk short distances without any support. However, he still relies on assistance for activities that require significant exertion or prolonged walking. III. Gastrointestinal: 1. Tube feeding - Initially, Reza requires tube feeding to provide him with sufficient nutrition while he is unable to eat. This lasts for six weeks until he is able to tolerate a soft and pureed diet. IV. Urinary: 1. Urinary catheterization - Reza undergoes urinary catheterization during his first month of recovery to assist with bladder control as his body heals. 2. Full-time incontinence products usage - For the first four months, Reza relies on full-time incontinence products as he gradually regains control over his bladder and learns effective pelvic floor exercises. 3. Occasional incontinence products usage - Within a year, Reza only needs occasional use of incontinence products during periods of strenuous physical activity or when he is experiencing illness or fatigue.