Answer:
This unanticipated problem must be reported to the IRB within 1 or 2 weeks of the investigator becoming aware of the problem.
Step-by-step explanation:
According to the Unanticipated Problems Involving Risks & Adverse Events Guidance (2007), the OHRP considers unanticipated problems to any incident or outcome that meets the following criteria: 1. unexpected 2. related or possibly related to participation in the research 3. suggests that the research subjects are at a greater risk of harm.
The HHS regulations work under a principle of prompt. Therefore, unanticipated problems that are serious adverse events should be reported within 1 week of the investigator becoming aware of the problem and any other unanticipated problem should be reported to the IRB within 2 weeks.