Yn ogystal, mae'r Sefydliad Cenedlaethol dros Ragoriaeth mewn Iechyd a Gofal (NICE) wedi cyhoeddi 'COVID-19 rapid guideline: critical care in adults' (NG159), er mwyn diogelu cleifion y mae angen gofal critigol arnynt yn ystod pandemig COVID-19 i'r eithaf, yn ogystal ag amddiffyn staff rhag yr haint a galluogi gwasanaethau i wneud y defnydd gorau o adnoddau'r GIG hefyd.
In addition, the National Institute for Health and Care Excellence (NICE) has published its COVID-19 rapid guideline for critical care in adults (NG159) to maximise the safety of patients who need critical care during the COVID-19 pandemic, while protecting staff from infection and also enabling services to make the best use of NHS resources.