<prompt> A 42 yrs man presenting with dizziness on standing and SBP falls by 50 mm of HgGradual stockings and compressionSIL isoprenalineFludrocoisoneOral indomethacin  <response>: Compression stockings are medical grade devices designed to move blood flow.. Most commonly compression suppo stockings come in mild 8-15 mmHg, Medium 15-20 mmHg, Firm 20-30 mmHg, X-Firm 30-40 mmHg gradient compression levels. Ref Davidson 23rd edition pg 456 