Medical negligence has become a big issue for medical practitioners. Fear of the law, and of litigation, has led to claims of defensive medical practice among doctors and nurses. At the heart of this lies the legal definition of the standard of care, where the law seeks to determine when conduct is 'reasonable' (and thus not negligent), or 'unreasonable' (and thus a breach of the legal duty of care and potentially negligent). In this article the author clarifies what the law means by 'reasonableness' with respect to nurses, drawing on both the law and the NMC Code. Furthermore, the article shall demonstrate that the law is not something to be fearful of but, rather, demands a standard no higher than that of the NMC.