From the 1st November onwards, NMC accepts the Occupational English Test (OET) in addition to the International English Language Test System (IELTS), as proof of a nurse or midwife’s English language competence.
The IELTS and the OET are used across the world. They are often chosen to test the language competency of healthcare professionals in the UK.
International English Language Test System (IELTS)
If you have completed an IELTS examination you must provide an IELTS certificate that confirms:
Occupational English Test (OET)
If you have completed an OET examination you must provide a certificate that confirms:
We will only accept results from OET tests taken from February 2016 onwards.
You can achieve the required mark across two test sittings if:
Test scores are valid for two years.
Original link : https://www.nmc.org.uk/registration/joining-the-register/english-language-requirements/accepted-tests/