Thank you for your inquiry. From what we gather from the question, you were asking about the possibility of HIV transmission through bloody feces on broken skin. From the information given, this scenario is determined to be No Risk (Transmission of HIV is not possible in the given scenario).
The scenario mentioned above does not meet the three components of the transmission equation. When HIV is exposed to oxygen in the environment it undergoes a rapid reduction in concentration. (1) In the scenario you described, the exposure to the fluid to oxygen would have essentially rendered any HIV inactive, effectively reducing the risk of HIV transmission to zero.
Due to the fact that there is no risk of transmission, I do not think that PEP is necessary.
Recommendation: No need for HIV test with the scenario provided, refer to a healthcare professional for other health related questions
AIDS Vancouver Helpline/Online, Rashell
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1) HIV Survival in the Environment.