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Army MOS · Medical

66S Critical Care Nursing

Current service use not established

This code is listed in the directory. Inclusion alone does not confirm current service use.

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Overview

A Critical Care Nursing officer provides holistic care to critically ill patients and their families across the age spectrum and continuum of critical care. The nurse performs complex assessments, administers intensive therapies and interventions, maintains continuous vigilance, and takes immediate lifesaving action in intensive care, trauma, post anesthesia, medical, and cardiovascular settings.

Core Skills

  • Burn and surgical trauma nursing care
  • Post-anesthesia assessment and nursing care
  • Intensive nursing care for combat casualties

Civilian Career Paths

Career associations are editorial assessments of the cited evidence, not an official crosswalk unless the evidence explicitly says so. O*NET supplies civilian occupation information, not proof of a military match. Related experience does not confer civilian qualifications. Tasks and tools below describe civilian work, not military training.

Critical Care Registered Nurse (ICU RN)

Military experience with complex ICU assessments, high-intensity interventions, continuous monitoring, and immediate lifesaving action directly supports civilian critical care nursing.

How to prepare: Contact the nursing regulatory body where you plan to practice to verify your licensing status; RN practice requires a state nursing license, approved nursing education, and a qualifying exam. Ask prospective ICU employers to review your medical, surgical, trauma, or cardiovascular experience for unit placement and orientation needs.

What the civilian work involves
  • Evaluate patients' vital signs or laboratory data to determine emergency intervention needs.
  • Monitor patients for changes in status and indications of conditions such as sepsis or shock and institute appropriate interventions.
  • Prioritize nursing care for assigned critically ill patients, based on assessment data or identified needs.
Civilian tools and software (examples)
  • Epic Systems
  • MEDITECH software

Notes & Sources

Evidence for this guidance (4 documents)
  1. Army COOL MOC feed: 66S Critical Care Nursing

    [1] data/authority/army-codes.json entry 66S (OSD COOL feed, fetched 2026-07-25); DB rank officer, authority codeType officer

    Supports: Burn and surgical trauma nursing care, Post-anesthesia assessment and nursing care, Intensive nursing care for combat casualties, Critical Care Registered Nurse (ICU RN) (O*NET 29-1141.03)

  2. O*NET: Critical Care Nurses

    [2] O*NET 30.3 occupational data

    Supports: Critical Care Registered Nurse (ICU RN) (O*NET 29-1141.03)

  3. NCSBN: NCLEX & Other Exams

    [3] Ready to Take the NCLEX? section

    Supports: Critical Care Registered Nurse (ICU RN) (O*NET 29-1141.03)

  4. Bureau of Labor Statistics: Registered Nurses

    [4] What They Do; Licenses, Certifications, and Registrations; Advancement; retrieved 23 September 2026

    Supports: Critical Care Registered Nurse (ICU RN) (O*NET 29-1141.03)

Defense contractor jobs for 66S

Descriptions may be summarized for clarity. Verify all information with your branch career counselor or official military documentation before making career decisions.

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