Respiratory Cultures Community Acquired Pneumonia – Sputum rejection rate and culture correlation with gram stain.
{"Image DocumentName": "Respiratory CulturesCommunity Acquired Pneumonia \u2013 Sputum rejection rate and culture correlation with gram stain.", "Image ImageDescription": "54% of all samples were judged to be of good quality. Presence of a (predominant morphology) PM on Gram stain was predictive of whether the sputum culture could demonstrate a pathologic organism. In the presence of a positive PM, 86% of cultures yielded a pathologic organism, while a positive culture was obtained in 19.5% of Gram stains without a predominant organism. S. pneumoniae was the most common infection, growing in 55.7% of positive sputum cultures. The sensitivity and specificity of finding Gram-positive diplococci for a positive culture of S. pneumoniae were 60% and 97.6%, respectively (Arch Intern Med. 2004;164: , ) Ventilator associated pneumonia (VAP) \u2013 appropriate specimen. Blood cultures highly specific but not sensitive (positive in <10% of VAP) Quantitative cultures of lower respiratory tract specimens show a closer clinical correlation than sputum subcultures (Clinical Microbiol. Rev. 19: , 2006.) Mike.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}