University Hospital Kerry was one of seven hospitals requiring re-inspection due to poor hygiene and maintenance standards.
A new report by the Health Information and Quality Authority, shows that patients are being exposed to risk of infection due to poor levels of overall cleanliness in hospitals.
The authority says this represents a significant increase when compared to 2014 where one in ten hospitals required re-inspection.
During the course of 39 inspections in 32 hospitals, overcrowding was recorded as an issue, with limited space between beds for staff trying to circulate and manoeuvre around patients.
HIQA also reported that the lack of pro-active maintenance programmes resulted in worn and poorly maintained surfaces which do not facilitate effective cleaning.
University Hospital Kerry underwent an inspection in July of last year and a follow-up inspection a month later.