“I would not have suspected Pseudomonas on this wound. Both the Infectious Disease physician and myself were surprised when the i:X images showed clear presence of the cyan color, which influenced my clinical practice.”
— Rosemary Hill, BSN, CWOCN, CETN(C)
Pseudomonas aeruginosa is one of the most common pathogens found in chronic leg ulcers.1 It frequently leads to stalled wound healing and its unique intrinsic and acquired antibiotic resistances make early identification and selection of Pseudomonas-specific treatment regimes critical in wound care.1-2 P. aeruginosa sometimes presents with clinical symptoms, including a malodorous, greenish crust and a greenish tinge on removed dressings,3 but frequently no specific signs and symptoms are observed.3 This bacterial species uniquely fluoresces a cyan color on MolecuLight i:X fluorescence images, enabling immediate species identification.
This patient’s stalled wound exhibited no clinical signs and symptoms specific to Pseudomonas aeruginosa colonization, yet real-time visualization of cyan fluorescence on MolecuLight i:X images (Figure 2) strongly suggested P. aeruginosa. Obtaining this information at the point of care led the clinician to immediately select an antimicrobial dressing indicated for use against P. aeruginosa. Swabs taken from regions of cyan fluorescence under MolecuLight i:X fluorescence guidance later confirmed moderate growth of P. aeruginosa.