LOINC long common name : Deprecated PhenX measure - executive function;
LOINC description : The Trail Making Test is an interviewer-administered, two-part test that requires
the respondent to organize numerical and alphabetical sequences that are randomly
distributed on a piece of paper. The protocol includes instructions for correcting
mistakes and instructions for scoring based on speed and accuracy. Whereas the Trail
Making Test has two parts (Parts A and B), the PhenX Neurology Working Group recommends
that part B be used to measure executive function in adults. The Trail Making Test
is a proprietary, fee-based instrument that is available from Retina Neuropsychology
Lab, Inc.;