NCT

 Q: Number connection test (NCT), also known as Reitan Test is used to evaluate which pathology? 

 Answer: Hepatic encephalopathy

NCT (Reitan Test) is a timed connect-the-numbers test. With no underlying hepatic encephalopathy, patients finish the test in seconds less than or equal to their age in years. If a patient is 40 years of age, he should finish the test in less than or in 40 seconds. Another rule of thumb described is that any healthy person should be able to finish in 30 seconds. 

Test was invented to administered in two-four parts but subsequent experience found that only one part is as effective as complete test.

Details can be found at:

 https://anthc.org/wp-content/uploads/2017/05/Numbers-Connection-Test.pdf

#hepatology

References:

1. Conn HO. Trailmaking and number-connection tests in the assessment of mental state in portal systemic encephalopathy. Am J Dig Dis 1977; 22:541. 

2. Amodio P, Del Piccolo F, Marchetti P, et al. Clinical features and survivial of cirrhotic patients with subclinical cognitive alterations detected by the number connection test and computerized psychometric tests. Hepatology 1999; 29:1662.

3. Weissenborn K, Rückert N, Hecker H, Manns MP. The number connection tests A and B: interindividual variability and use for the assessment of early hepatic encephalopathy. J Hepatol 1998; 28:646.