Section 218.6 - Scope of practice for clinical nurse specialist(a) Nothing in this act shall permit a clinical nurse specialist to engage in the practice of medicine or surgery as defined in the act of December 20, 1985 (P.L. 457, No. 112) , known as the "Medical Practice Act of 1985"; perform acts of medical diagnosis; or prescribe medical therapeutic or corrective measures. The restrictions in this subsection apply to both physical and mental disorders.(b) Nothing in this act shall be construed to limit or prohibit a clinical nurse specialist from engaging in those activities which normally constitute the practice of nursing, including a nursing diagnosis, as defined in section 2. 1951, May 22, P.L. 317, No. 69, § 8.6, added 2007, July 20, P.L. 320, No. 49, § 4, effective in 60 days [9/18/2007].