Skin test useful in Hydatid disease is?
Correct Answer: Casoni's test
Description: ANSWER: (A) Casoni's testREF: Paniker's 6th ed p. 149The Casoni test is a skin test used in the diagnosis of hydatid disease. The test involves the intradermal injection of 0.5 ml of sterilised fluid from hydatid cysts. A wheal response occurring at the injection site within 20 minutes is considered positive. The test is positive in about 90% of cases of hydatid disease affecting the liver, but positive in less than 50% of patients with hydatid disease elsewhere in the body; false positive results are also common. Consequently, serological tests are nowr generally used.Dick's test: Scarlet fever Schick's test: Diphtheria
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Microbiology
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