What to Know. The prognosis of osteoarthritis is not necessarily bad. The words diagnosis and prognosis are commonly (though not exclusively) used in the medical field. What follows is a prognosis, which is a prediction of the course of the disease as well as the treatment and results.A helpful trick is that a diagnosis comes before a prognosis, and diagnosis is before prognosis alphabetically. Diagnosis . In medical terms, diagnosis can be referred to as the detection or identification of a medical condition whereas prognosis is the course or probable outcome of the condition. Remember, too, that older people commonly have comorbidities (conditions that occur together). A diagnosis is an identification of a disease via examination. Beginning treatment early in the disease process may help preserve daily functioning for some time, even though the underlying Alzheimer’s process cannot be stopped or reversed. Melanoma is described by stages, which give an idea of how far the cancer has spread. Diagnosis: The diagnosis is based on patient’s medical history, a clinical examination and if necessary – on special studies. Early, accurate diagnosis is beneficial for several reasons. Find out what the stages mean for prognosis and survival rates. "But diagnosis and prognosis refer to different kinds of knowledge or information. Look it up now! They can’t tell you how long you will live, but they may help give you a better understanding about how likely it is that your treatment will be successful. Having an early diagnosis helps people with Alzheimer’s and their families: Plan for the future Sarcoidosis is a systemic disease of unknown etiology characterized by the presence of noncaseating granulomas in any organ, most commonly the lungs and intrathoracic lymph nodes. Prognosis vs. Survival statistics are a way for doctors and patients to get a general idea of the outlook (prognosis) for people with a certain type of cancer. Testing should be carried out in a health care setting (such as your doctor’s office or a lab). Diagnosis. Both terms contain the root word gnosis, which means "knowledge. Examples If the diagnosed medical condition in an affected person is common cold, then it would have a good prognosis i.e. A diagnosis … This article attempts to explain the meaning of prognosis and diagnosis and the context in which they are used, highlighting the differences between both terms. Each way usually needs to be repeated on a second day to diagnose diabetes. Diagnosis refers to identifying the nature or cause of a certain phenomenon and prognosis refers to the future of a condition. There are several ways to diagnose diabetes. 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