60 points is enough I guess. check here http://www.immi.gov.au/Work/Pages/SkillSelect/SkillSelect.aspx
[TABLE=class: table-100, width: 611]
[TR]
[TD]2544[/TD]
[TD]Registered Nurses[/TD]
[TD=class: text-align-right, align: right]15 042[/TD]
[TD=class: text-align-right, align: right]1648[/TD]
[/TR]
[/TABLE]
and here http://www.immi.gov.au/Work/Pages/SkillSelect/results/9-january-2015.aspx
You will definitely get invitation if you have 60 points and degree is assessed.