; or (ii) poses an immediate and serious threat of harm to herself or others that cannot reasonably be prevented by other means; or (B) a healthcare professional responsible for the health and safety of the prisoner determines that the use of restraints is appropriate for the medical safety of the prisoner. (2) Least restrictive restraints In the case that restraints are used pursuant to an exception under paragraph (1), only the least restrictive restraints necessary to prevent the harm or risk of escape described in paragraph (1) may be used. (3) Application (A) In general The exceptions under paragraph (1) may not be applied— (i) to place restraints around the ankles, legs, or waist of a prisoner; (ii) to restrain a prisoner’s hands behind her back; (iii) to restrain a prisoner using 4-point restraints; or (iv) to attach a prisoner to another prisoner. (B) Medical request Notwithstanding paragraph (1), upon the request of a healthcare professional who is responsible for the health and safety of a prisoner, a corrections official or United States marshal, as applicable, shall refrain from using restraints on the prisoner or shall remove restraints used on the prisoner. (c) Reports (1) Report to the Director and healthcare professional If a corrections official or United States marshal uses restraints on a prisoner under subsection (b)(1), that official or marshal shall submit, not later than 30 days after placing the prisoner in restraints, to the Director of the Bureau of Prisons or the Director of the United States Marshals Service, as applicable, and to the healthcare professional responsible for the health and safety of the prisoner, a written report that describes the facts and circumstances surrounding the use of restraints, and includes— (A) the reasoning upon which the determination to use restraints was made; (B) the details of the use of restraints, including the type of restraints used and length of time during which restraints were used