The purpose of this research was to study the factor of caring for critically ill patients’ families in an intensive care unit, General Hospitals and Regional Hospitals. The sample consisted of 324 professional nurses. Who were recruited by a multistage sampling from 16 Hospitals. The research instrument was an caring for critically ill patients’ families questionnaire which was content validated by a group of experts and the Cronbach’s alpha coefficient was 0.98. The data was factorized by Principle Component Analysis and Orthogonal Rotation with Varimax Method. The findings were as follows: There were 6 major factors of caring for critically ill patients’ families, which described by 59 items accounted for 59.45 percent of variance [which were]: 1.Family adaptation support described by 21 items accounted for 19.24% of the variance. 2.Facilitation support described by 11 items accounted for 11.83% of the variance. 3. Spiritual support described by 6 items accounted for 7.94 % of the variance. 4.Family attention described by 8 items accounted for 7.31 % of the variance. 5.Effective information described by 5 items accounted for 6.78 % of the variance. Emotional support described by 8 items accounted for6.34% of the variance.
