Table 3

Suggested tests for the component features of delirium

 1 Attention Subtraction of 7s or 3s from 100Counting from 20 backwardsCounting months of year backwards
2 Orientation Date, day of the week, time of dayName and location of placeIdentification of familiar persons
3 Memory Ability to recall 3 words and 3 objects after 5 minutesDigit spanDescription of reasons for admission to hospital, etc
4 Abstract thinking Definitions of a common wordsInterpretation of a simple proverbSimilarities and differences
5 Speed and dynamics of thought Word fluency testAsk the patient to say as many single words as possible within one minute
6 Perception Description of the surroundingsInterpretation of photographs in a magazine, etc