What is serial sevens test?

The serial sevens test is a cognitive assessment tool that is commonly used by healthcare professionals to evaluate a patient's mental state and cognitive function. The test measures a person's ability to perform a simple calculation task in a timed manner. The patient is asked to start at a given number (usually 100) and then subtract seven from it repeatedly as quickly and accurately as possible for a certain amount of time (usually one minute). The score is based on the number of correct answers provided during the allotted time. The test is used to assess cognitive impairment, such as delirium or dementia, and is often one of several tests used to make a diagnosis. However, it is important to note that this test is not a definitive diagnosis and should be used in conjunction with other cognitive assessments.