Diagnostic cost comparison Save money by comparing the cost of diagnostic procedures in the Tri-Cities area. Compare costs & save Instructions for your test To view instructions for your test, go to the outpatient diagnostics page to locate your test. Outpatient diagnostics myHMG With your myHMG account, you can see the results of diagnostics tests. Go to myHMG 60 SHARES Share on Facebook Tweet Follow us Share Share Share Share Share