What is a patent foramen ovale (PFO)? In about 25% to 33% of people (that is, one in three to four individuals), the foramen ovale tissue flap does not close completely. When the foramen ovale remains open, it is called a â patent foramen ovaleâ or PFO. A PFO can allow a small amount of blood to pass from the right side of the heart to the left side
the minimum necessary standard is intended to be consistent with and not override professional judgment and standards and that practices must implement policies and procedures based on their own assessment of what phi is reasonably necessary for a particular purpose
The minimum necessary standard means that people should only access, use or. disclose the health information that is minimally necessary to accomplish a given task or. purpose. For instance, to schedule an appointment, a staff person will need to access. demographic information like name, address, and phone number, but would not need to. look through a patientâs lab results. The documents below describe OHSUâs minimum. necessary standards for disclosures, or releases of health information outside of OHSU.