EHIC or PRC can be used in contracted healthcare institutions and contracted healthcare workers in the country of temporary stay. These institutions and workers have to be a part of the compulsory health insurance system.
Yes. EHIC or PRC can be used in the same manner regardless of whether you are staying in another Member State of the EU, EEA countries or Switzerland on private business, attending college, business trip, temporary work to which you have referred by your employer or other reason.