<prompt> 25 yrs old labourer 3 yrs back presented with penile ulcer which was not treated. Later he presented with neurological symptoms for which he got treated. Test to monitor response to treatment is-VDRLFTA ABSTPIRPR  <response>: Labourer is suffering from neurosyphilis. Best test to monitor response to treatment is VDRL- CSF, Blood Titer of 1:8 is ve and titre of 1:8 is a False ve VDRL. 