Jun 11, 2025ย ยท The 4 stages of untreated lobar pneumonia are: Stage 1: Congestion Stage 2: Red hepatization Stage 3: Grey hepatization Stage 4: Resolution Pneumonia is an infection in your. Jun 27, 2025ย ยท RA progresses in stages. There are four stages of RA based on X-ray studies of your joints: In the first stage of RA, joint X-rays do not show any joint damage. In the second. Oct 15, 2024ย ยท Official answer: COPD is now classified using grades, not stages. Grades of COPD are ranked from 1 to 4, ranging from mild to a very.

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Jul 22, 2024ย ยท What are the stages and symptoms of COVID-19? Day 1: The symptoms usually start with a fever, a dry cough and mild breathing issues which may get worse over the next.

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