Final answer:
The charge nurse should oversee scheduling and resident assignments of nurse and CNA to assure adequate staffing, especially in critical care environments such as the ICU and CGU. The correct option is b.
Step-by-step explanation:
The charge nurse is responsible for overseeing scheduling and resident assignments of nurses and CNAs to assure adequate staffing.
The role is critical to ensure that all patients, including those in specialized units such as ICU, CGU, Emergency, and Medical Surgical environments, receive the care they need.
Direct supervision by a registered nurse includes tasks like reviewing patient histories, assessing and responding to needs before and during treatment, and monitoring processes like dialysis to maintain accurate and sterile procedures. This involves taking and reporting vital signs as well as preparing solutions and equipment, which necessitates an optimal level of staffing to manage the workload effectively.
Hence, Option b is correct.