Mae’r egwyddorion yn nodi’n glir y penderfynir ar y defnydd o brofion ar gyfer ymwelwyr ysbyty ar lefel leol. Gweithredu ‘hierarchaeth o reolaethau’ gan gynnwys protocolau a gweithdrefnau ar gyfer cadw pellter cymdeithasol, glanhau amgylcheddol ac atal a rheoli heintiau, gan gynnwys cyfarpar diogelu personol yw’r prif ffyrdd o atal COVID-19 rhag cyrraedd lleoliadau gofal iechyd a lledaenu ynddynt.
The principles make it clear the use of testing for hospital visitors is to be determined at a local level.  Implementation of the ‘hierarchy of controls’ including  protocols and procedures for social distancing, environmental cleaning and infection prevention and control, including PPE remain the principal ways of preventing the entry and spread of COVID-19 within health care settings.