critical care

:  of, relating to, or being a turning point or specially important juncture : such as

:  relating to or being the stage of a disease at which an abrupt change for better or worse may be expected

:  being or relating to an illness or condition involving danger of death

:  suffering of mind :  grief

:  a disquieted state of mixed uncertainty, apprehension, and responsibility

:  a cause for such anxiety

:  to feel trouble or anxiety

:  to feel interest or concern

:  to give care