What is the most effective response if a nurse suspects a colleague is impaired at work?

Nurses have an ethical and (in most states) legal duty to report suspected impairment of colleagues. The behavior may be substance use, mental health issues, or medical conditions affecting function. Why report: (1) Patient safety — impaired nurses can harm patients through errors, missed observations, poor judgment; (2) Colleague's welfare — early intervention enables recovery; ignoring enables progression of disease; (3) Profession's integrity — nursing's trust depends on accountability; (4) Mandatory in many states — nurse practice acts require reporting; failure to report can result in nurse's own license discipline. Signs of impairment: (1) Behavior changes — mood swings, isolation, irritability; (2) Performance issues — errors, missed assignments, falling asleep; (3) Physical signs — slurred speech, unsteady gait, dilated/constricted pupils, smell of alcohol; (4) Medication discrepancies — missing controlled substances, frequent waste, unusual patient pain complaints (when nurse is involved); (5) Working extra shifts or unusual hours (access to medications). What to do: (1) Document specific observations factually; (2) Report to charge nurse or nursing supervisor — proper chain of command; (3) Do not confront the colleague yourself or accuse publicly; (4) Maintain confidentiality; (5) Cooperate with subsequent investigation. Outcomes: investigation, drug testing if indicated, intervention if confirmed; many states have alternative-to-discipline programs (peer assistance programs) that allow recovery while licenses are maintained under monitoring. Punitive responses harm individuals and discourage future reporting. Nurses in recovery often return to practice successfully with proper support.