Stage 4: Questions to ask your Doctor Make an Appointment Refer a Patient Ask a Question Reviewed by Jeffrey James Swigris, DO, MS (September 01, 2017) Stage 4 of IPF requires advance oxygen needs, which means needing high-flow oxygen or when a lightweight, portable delivery system is unable to meet a person with IPFs needs. Questions to ask your health care provider with Stage 4 Idiopathic Pulmonary FIbrosis What is the normal life expectancy at this point? What palliative care resources are available? What does the end look like? Can you guarantee that I will not suffer? Stage 3: Questions to ask your Doctor Clinical Trials For more than 100 years, National Jewish Health has been committed to finding new treatments and cures for diseases. Search our clinical trials.