Q: House staff injured himself while performing central line with needle stick. Patient is known as Hepatitis C positive. What are his chances of contracting disease?
Answer: 1.5 - 2.0 %
As expected chances are high if puncture wound is deep.
See full Needle injury protocol here
(source: nhsemployers, UK - http://www.nhsemployers.org/Aboutus/Publications/Documents/Needlestick%20injury.pdf)