An ICU worker is a healthcare professional who works in an intensive care unit. This type of worker can include nurses and Licensed Practical Nurses (LPNs). Nurses are typically registered nurses who have completed a bachelor's degree in nursing and have passed the National Council Licensure Examination (NCLEX-RN). LPNs are licensed healthcare professionals who have completed a state-approved program and passed the National Council Licensure Examination (NCLEX-PN). Both nurses and LPNs provide direct patient care in the ICU, including monitoring vital signs, administering medications, and providing emotional support to patients and their families.