Least Invasive First

Definition

Least Invasive First is a principle that recommends attempting non-invasive or minimally invasive interventions before moving to more invasive ones, when clinically appropriate.

Examples

• Repositioning before administering oxygen for mild dyspnea
• Nonpharmacologic pain management (ice, repositioning) before opioids
• Oral rehydration before IV fluids
• Dietary changes before medications
• Physical therapy before surgery

Exception

In emergencies, move directly to the most effective intervention. Do not delay life-saving care (e.g., IV fluids for severe dehydration, not oral).

NCLEX Relevance

High-yield test-taking strategy. Favor non-invasive when stable.