Clinical Laboratory Tests Book In Urdu Pdf 86
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Laboratory testing for HIV is essential to the prevention of the spread of HIV. The test must be performed using a validated test kit. Whole blood samples from the collection tube must be sent to the laboratory using standard procedures. Collection and transportation of specimens must be traceable to ensure that specimens were collected and transported as specified. It is recommended that testing kits be replaced as soon as any portion of the test kit becomes contaminated with HIV. The program manager and CDC laboratory staff should be informed about any HIV-positive results to initiate the appropriate follow-up investigations and management. It is recommended that specimens that contain HIV be tested with a separate aliquot for each testing requirement to ensure the accuracy of the results. Specimens with discrepant results, reagents with discrepant results, or aliquots that have been used for other testing should not be re-tested. Lab personnel must ensure that only validated and certified testing materials are used in the testing of specimens. At least once per week, the laboratory manager should check and validate the integrity of all specimen sampling equipment, collection tubes, shipping containers, and vials. Specimens that contain HIV must be transferred to a separate facility for the follow-up investigations, treatment, and/or care required by the patient. The results of HIV tests must be maintained in a confidential manner as required by the National Center for HIV, STD, and TB Prevention (NCHSTP) and the American Red Cross. Details on the applicable laws and regulations governing the disclosure of HIV test results should be posted on the HIV Testing and Counseling Web site, http://www.cdc.gov/hiv/basics/publichealth/testing/testing.html .
Containers with drying agents should be used for collecting specimens to avoid contamination of specimens. Collection and transportation of specimens must be traceable to ensure that specimens were collected and transported as specified. This is accomplished with packaging and labeling. Laboratory testing is the first line of defense against the introduction of HIV into the blood supply. To prevent inadvertent release of blood from the blood supply, the blood supply must be validated and certified to be free from HIV. Adequate procedures should be in place to validate the blood supply at each blood center and to validate (verify) any blood collected during the certification period.
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