How is nursing informatics used in nursing in and Intensive care unit (ICU) Importance of it for caring of patients in a critical care setting?

How is nursing informatics used in nursing in and Intensive care unit (ICU) Importance of it for caring of patients in a critical care setting?

Difficulties faced if we did not use information technology in the critical care setting?
Requirements: Min 300 words, APA Format, Scholarly sources (No older than 5 years)