When we suffer from a disease, we feel unwell because some part of the body is not working normally. This is an indication of a disease and is called a symptom. A symptom is a change in normal functioning of the body which is felt by a patient, but which cannot be observed by the doctor.
For example, stomach ache, sore throat and nausea are symptoms. A patient has to tell the doctor about these because the doctor cannot see or feel them. Symptoms only indicate that a patient is suffering from a disease, but they do not indicate what disease.
For example, a patient complaining of body ache could be suffering from any one of a number of diseases like influenza or malaria. Apart from what he hears from a patient, a doctor looks for signs of a disease.
A sign of a disease is a change in the bodily function or structure that can be observed. Rashes, swelling of glands, change in colour of the skin, etc., are signs which give doctors a good idea about a disease.
For example, a sticky red eye indicates a common eye infection called conjunctivitis. Yellow skin and eyes can be due to a disease called hepatitis. Signs and symptoms help in the diagnosis of a disease.
Diagnosis means the process of identifying a disease. Apart from signs and symptoms, a doctor may measure the temperature, blood pressure and weight of the patient to diagnose a disease. In many cases, the doctor also needs the help of laboratory tests of blood, urine, stool, etc., and diagnostic images like X-rays to diagnose a disease.
Prognosis: Prognosis is the predicted outcome or forecast of a disease or process.It is an objective measurement but a subjective comment based on previous cases.Good prognosis means that the patient is very likely to recover, and the threat to life is less, and the threat to life is less.
A sticky red eye indicates the symptoms of which disease ? | |||
Right Option : A | |||
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A person develops rosy cheeks if he goes from plain to hills. This occurrence is due to ________________ | |||
Right Option : A | |||
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Lockjaw is an acute symptom in which the patient cannot open his jaw due to extreme stiffness of the neck muscles. The disease is caused by ________________ | |||
Right Option : B | |||
View Explanation |
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