2. Follow-up Testing:

• 20% of workers who commence attending workshops will seek HIV testing at the workplace. Each test will require a total of 2 hours of the nurses time for pre- and post-test counseling, for taking the blood, for filling in the forms and managing the procedure. Assume that the staff nurse and the professional nurse share equally the time taken for these activities. The medical officer will need to examine those testing positive. The examination takes about 45 minutes.
• Testing at the workplace will increase the risk of a needlestick injury. Approximately 1 in 750 blood sample procedures results in a needlestick injury, of sufficient significance to elicit a full protection protocol. The protocol involves completion of a WCA form, counselling of the worker and the nurse, and two tests of the nurse involved. Costs of insurance for the injury are borne entirely by WCA. Assume that nurse time in testing totals 2 hours per test.
• Costs per HIV test (ELISA) is R 10 per test, including tubes, swabs and other materials. If the ELISA is positive, the definitive test costs a further R40.
• 10% of workers who attend workshops will seek HIV testing outside the workplace. They will take off half a day to do so.