What does the abbreviation 'Ad lib' mean?

The abbreviation 'Ad lib' is derived from the Latin phrase "ad libitum," which translates to "as desired" or "at one's pleasure." In medical contexts, it often refers to a situation where patients can have something, such as fluids or medications, according to their own preferences and needs, rather than on a strict schedule. This means that there are no limitations imposed, allowing individuals to take what they need or want when they feel it is necessary. Understanding this term is crucial for healthcare professionals like medical assistants, as it guides them in providing patient-centered care and respecting individual patient preferences.