Most common, and most serious cause of infection by pseudomonas is seen in patients with
→ P.aeruginosa is pathogenic only indicated into areas devoid of normal defences e.g. when mucous membrane is disrupted, patient is catheterized, neutropenia is there.
→ Most common, and most serious cause of infection is burns.
→ Most common infection outside hospital is suppurative otitis media .
→ Causative agent of shanghai fever.
→ Produce blue pus, with characteristic fruity odour 
→ Pathognomonic skin lesions are called ecthyma gangrenosum, which occur singly or in small numbers on the perineum, buttocks, and extremities.
→ Resistant to common antiseptic and disinfectants such as Dettol  in contrary, it may grow profusely in bottle of these antiseptic.
Burns
Neutropenia
Catheterization
None of the above