Even though PD is a clinical diagnosis, there are some special situations where you would want to consider tests.
Some of the diagnostic tests used in PD include the following:
You may want to consider other tests when making the diagnosis:
Notwithstanding all the previously mentioned tests, the diagnosis of PD remains clinical. Perhaps one of the best predictors of a diagnosis of PD is a relatively slow, gradual progression and a sustained response to levodopa or other dopaminergic therapies.
Deeb J, Shah M, Muhammed N, et al. A basic smell test is as sensitive as a dopamine transporter scan: comparison of olfaction, taste and DaTSCAN in the diagnosis of Parkinson’s disease. QJM 2010; 103;841-952.
Meara J, Bhowmick BK, Hobson P. Accuracy of diagnosis in patients with presumed Parkinson’s disease. Age Aging 1999; 28:99-102.