This is the 259th most frequent Lithuanian word.
pacientų
"Pacientų" means "of patients" in English.
In this sentence, 'pacientų' is a genitive plural form meaning 'of the patients', indicating possession.
Gydytojas rūpinasi pacientų sveikata.
The doctor takes care of the patients' health.
Here, 'pacientų' is used in the genitive plural form to quantify the noun 'daug' (many), conforming to the rules of correlation between quantity expressions and noun cases in Lithuanian.
Daug pacientų laukia eilėje.
Many patients are waiting in line.
In this usage, 'pacientų' is the genitive plural form, connected to the preposition 'apie' which requires the genitive case in this context, indicating the subject of discussion.