childâs arm to give medicine for the test. What happens during the scan? 1. The first medicine, called radioisotope, is given. Your child will need to lie still during the scan. It normally takes 30 minutes. After this scan, the images will be checked to make sure all the areas can be seen. 2. The CCK is given over 30 minutes.
Digit span testing is a measure of memory span which is the number of items, usually words or numbers, that a person can retain and recall. Where numbers are used it is also known as digit span, and the test is called digit repetition.
Definition of Memory span. Memory span: The number of items, usually words or numbers, that a person can retain and recall. Memory span is a test of working memory (short-term memory). In a typical test of memory span, an examiner reads a list of random numbers aloud at about the rate of one number per second. At the end of a sequence, the person being tested is asked to recall the items, in order. The average memory span for normal adults is seven. Last Editorial Review: 5/13/2016.