A 72-yeаr-оld pаtient in the intensive cаre unit is diagnоsed with acute kidney injury requiring urgent initiatiоn of continuous renal replacement therapy (CRRT). The attending physician is unavailable, and the charge nurse asks the Adult-Gerontology Acute Care Nurse Practitioner (AGACNP) to independently order and initiate CRRT based on prior experience in dialysis nursing before becoming an NP. The AGACNP has completed didactic education on renal replacement therapies but has not been credentialed or privileged by the institution to initiate CRRT independently. What is the most appropriate action for the AGACNP?