Table 1.

Assignment of radiation tiers based on treatment indication

Tier 1 (highest priority)	Patients with oncologic emergencies (neurologic compromise, tumor bleeding, airway compromise, etc) requiring palliative RT
Tier 2	Patients with symptomatic disease exclusionary of oncologic emergencies for which RT is the standard of care Patients with asymptomatic disease for which RT is recommended to prevent impending functional deficit
Tier 3 (lowest priority)	Patients with symptomatic or asymptomatic disease for which RT is one of the effective treatment options

Abbreviation: RT = Radiation therapy.