The chance that a health worker gets HIV from an accidental needle prick is: March 2013 (b, h)
Correct Answer: 0.30%
Description: Ans. A i.e. 0.3% Taken together, the data from several large studies suggest that the risk of HIV infection following a Percutaneous exposure to HIV contaminated blood is nearly 0.3% and after a mucous membrane exposure, approximately 0.09% HIV HIV is Single stranded, Positive sense, RNA virus HIV is found in Blood, Semen, Saliva HIV consists of 2 copies of ss RNA, RNA dependent DNA polymerase (reverse transcriptase) , Integrase, Protease Seroconversion takes 4 weeks MC mode of transmission: Hetero-sexual In hetero-sexual transmission: Male to female is commoner (as compared to female to male) Chances of transmission with accidental needle prick: 0.3% Retroviral sequence in host cell: RNA-DNA-RNA p24 antigen (used for early diagnosis) disappears after: 6-8 weeks of HIV infection CD4: CD8 ratio is Reversed in HIV infection Reservoir of HIV infection: Macrophages Window period: Time period between, infection to appearance of antibodies in serum During window period, ELISA and western blot are: Negative MC cause of diarrhea in AIDS: Cryptosporodiosis (NOT cryptococcus) MC cause of meningitis in AIDS: Cryptococcus MC cause of oral ulcer in AIDS: Candida MC cause of TB in AIDS in tropical countries: Mycobacterium TB MC oppounistic infection in AIDS in India is TB Window period: Time period between infection and detection of antibodies against HIV Hallmark of HIV: -- Profound immunodeficiency, -- Quantitative and qualitative deficiency of helper or inducer T cells AIDS related neoplasm: - Kaposi sarcoma, - B cell non-Hodgkins lymphoma -- Primary lymphoma of brain Kaposi sarcoma arises from: Cells lining lymph vessels or blood vessels Kaposi sarcoma is associated with: -- HIV, -- Immunosuppression/ organ transplants
Category:
Medicine
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now