Tourniquet testing is for the diagnosis of a) Diphtheria b) Break Bone Fever c) AIDS d) Hepatitis A
Hint: Using tourniquet testing one can find out the platelet count. It helps in determining thrombocytopenia or the reduced platelet count.
Complete answer: When a person is suffering from a disease, medical tests are done for confirming a particular type of disease. >Option a: The usual tests for diphtheria include swab tests of nose or throat and testing them for the bacteria that causes diphtheria. The symptoms of diphtheria are almost the same as the symptoms of common cold. But Tourniquet test is not done for testing diphtheria, therefore, this is the incorrect option. >Option b: Break bone fever is commonly known as dengue. The test done to confirm dengue is a tourniquet test. The test is performed by assessing the blood pressure of the person. The test helps in determining capillary fragility and also to determine reduced count of platelets. One of the key symptoms of dengue are reduced platelet count or thrombocytopenia. Other symptoms include, Persistent vomiting ,Liver enlargement,Rashes,Aches.Therefore, this is the correct option. >Option c: AIDS is caused by HIV virus and can be tested using ELISA test. Therefore, this is the incorrect option. >Option d: Hepatitis A is diagnosed by blood tests. The blood tests are used to screen for two different types of antibodies to the virus. But Tourniquet test is not done for testing diphtheria, therefore, this is the incorrect option.
Thus, the correct option is b)Break bone fever.
Note: The symptoms of dengue are seen generally after 4 to 14 days after the infection and in some cases there are no symptoms seen at all. Dengue is transmitted by Aedes mosquito which acts as a vector.