▁coron ary ▁inter vention ▁( ang iop last y ▁with ▁or ▁without ▁st ent ▁insert ion ) ▁or ▁with ▁th rom bol ysis ▁(" cl ot ▁b uster " ▁medic ation ), ▁wh iche ver ▁is ▁available . ▁In ▁the ▁absence ▁of ▁ST - segment ▁elev ation , ▁heart ▁damage ▁is ▁detected ▁by ▁card iac ▁markers ▁( blo od ▁tests ▁that ▁identify ▁heart ▁mus cle ▁damage ). ▁If ▁there ▁is ▁evidence ▁of ▁damage ▁( inf ar ction ), ▁the ▁ch est ▁pain ▁is ▁attributed ▁to ▁a ▁" non - ST ▁elev ation ▁M I " ▁( N ST E MI ). ▁If ▁there ▁is ▁no ▁evidence ▁of ▁damage , ▁the ▁term ▁" unst able ▁ang ina " ▁is ▁used . ▁This ▁process ▁usually ▁necess it ates ▁hospital ▁ad mission ▁and ▁close ▁observation ▁on ▁a ▁coron ary ▁care ▁unit ▁for ▁possible ▁comp lications ▁( such ▁as ▁card iac ▁arr h yth mi as ▁– ▁irregular ities ▁in ▁the ▁heart ▁rate ). ▁Depending ▁on ▁the ▁risk ▁assess ment , ▁stress ▁testing ▁or ▁ang i ography ▁may ▁be ▁used ▁to ▁identify ▁and ▁treat ▁coron ary ▁ar tery ▁disease ▁in ▁patients ▁who ▁have ▁had ▁an ▁N ST E MI ▁or ▁un stable ▁ang ina . ▁ ▁R isk ▁assess ment ▁ ▁There ▁are ▁various ▁risk ▁assess ment ▁systems ▁for ▁determ ining ▁the ▁risk ▁of ▁coron ary ▁ar tery ▁disease , ▁with ▁various ▁emphas is ▁on ▁different ▁variables ▁above . ▁A ▁notable ▁example ▁is ▁F ram ingham ▁Sc ore , ▁used ▁in ▁the ▁F ram ingham ▁Heart ▁Study