Which of the following is a key aspect of patient safety in health care?

Calibrating medical instruments regularly is a key aspect of patient safety in healthcare because accurate measurements and functioning of medical devices are essential for delivering safe and effective patient care. Properly calibrated instruments ensure that diagnoses, treatment plans, and monitoring of patient conditions are based on precise data, reducing the risk of errors that could lead to harm.

While keeping medical records confidential is crucial for protecting patient privacy and maintaining trust, it is more related to ethical and legal standards than directly impacting patient safety in the clinical environment. Maintaining a welcoming environment contributes to patient comfort and satisfaction but does not directly address safety protocols. Providing entertainment during procedures may help in reducing patient anxiety but does not have a significant bearing on patient safety itself.