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 Rule04/14/03 3 request for the medical record. This does not apply to uses, disclosures orrequests for treatment purposes, because such requests are an exception tothe Minimum Necessary Rule (Section I.). III. DMH PROCEDURES FOR ENSURING THAT THE MINIMUMAMOUNT OF PHI IS USED, DISCLOSED OR REQUESTEDA.