Terms to Consider:

Health care treatment is anything done for a therapeutic, preventive, palliative, diagnostic, cosmetic or other health care purpose and may be a series of similar treatments or care (e.g., administration of blood pressure pills, wound care) given over time or a plan for a variety of care purposes for up to one year. 
http://www.health.gov.bc.ca/library/publications/year/2013/MyVoice-AdvanceCarePlanningGuide.pdf

Ordinary Care (also referred to as proportionate care) -  This refers to any treatment, operation or procedure that offers a reasonable hope of benefit without serious risk of death or excessive burden or excessive subjective repugnance or excessive pain or excessive expense. 
From Catholic Health  Association of BC