• This system attaches a score to procedures and techniques performed on an individual patient (e.g. use and number of vasoactive drug infusions, renal replacement therapy, administration of enteral nutrition).
• It has been used by some ICUs to develop a means of costing individual patients by attaching a monetary value to each TISS point scored.
• It is also used as an index of workload activity.
• A discharge TISS score can be used to estimate the amount of nursing interventions required for a patient in step-down facilities (e.g. a high dependency unit) or on the general ward.
• TISS does not accurately measure nursing workload activity as it fails to cater for tasks and duties such as coping with the irritable or confused patient, dealing with grieving relatives, etc.
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