I had the blood test in Laverty pathology (in Australia), The nurse assembled the needle and took off the needle cap, and then, placed it on the metal desk directly. After preparing the band-aid, she use the needle to collect the my blood. There is a discarded needle collection box on the metal desk. If there is a drop of blood which contains hiv on the desk, and my needle touches the blood, the nurse used this contaminated needle to pump my blood. Will I get infected? the gap between me and last patient is 1.5 minutes. Or I mean, a drop of blood exposes in the air for 1.5 minutes could be inactive? Do I need to take PEP (already 24 hours)