What is an important step for ensuring security when accessing the EHR system?

Choice A reason: Leaving a workstation unlocked and unattended is a major violation of HIPAA regulations and patient privacy. This allows unauthorized individuals to view or alter sensitive protected health information (PHI), which compromises patient safety and subjects the healthcare provider and institution to significant legal and financial penalties. Choice B reason: Shared logins prevent the system from creating an accurate audit trail of who accessed or modified a patient's record. Accountability is a cornerstone of healthcare informatics; every action within the Electronic Health Record (EHR) must be traceable to a specific individual to maintain data integrity and security. Choice C reason: Logging out immediately after completing documentation ensures that no one else can access the patient's data under the nurse's credentials. This practice is the most effective way to prevent accidental or intentional data breaches in a busy clinical environment where multiple staff members share hardware resources. Choice D reason: Passwords and multi-factor authentication are essential technical safeguards required by law to protect electronic health data. Avoiding passwords would leave the system completely vulnerable to cyberattacks and unauthorized access, significantly endangering the confidentiality, integrity, and availability of the patient's medical history and clinical data.