Non-registered staff carry out a number of roles, often working in direct patient care (often on wards), performing tasks such as personal care (washing and dressing), social care (feeding, communicating to patients and generally spending time with them) and more specialised tasks such as recording observations or vital signs (such as temperature, pulse and respiratory rate, or TPR) or measuring and assessing blood pressure, urinalysis, blood glucose monitoring, pressure sores (see Waterlow score) and carrying out procedures such as catheterisation and cannulation).