A report for the RCN's Frontline First campaign said:
The RCN believes that the NHS is sleepwalking into a nursing crisis in England that is drawing closer as the size of the cuts increase.
If the Government continues on its current path it will find itself stranded in a perfect storm of an ageing population with increasing healthcare demands, but without the adequate nursing workforce to deal with it.
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The man was taken early this morning to a south London police station where he remains in custody.
The Chancellor faces tough talks to build a Government while also dealing with the challenge from a resurgent far right.
Watch John McDonnell's speech at Labour Party conference 2017 live as he speaks to Brighton the audience from 12.15pm.