MLS Review, Microbiology questions with correct answers

70% alcohol then 2% iodine (or an iodiphor) - Answer the aseptic collection of blood cultures requires that the skin be cleansed with: 60 sec - Answer when cleaning the skin with alcohol then iodine for a blood culture collection, the iodine should remain intact on the skin for at least: inhibits phagocytosis and complement - Answer What is the purpose of adding 0.025%-.050% sodium polyanetholsulfonate (SPS) to nutrient broth media for the collection of blood cultures? corynebacterium diptheriae - Answer a flexible calcium alginate nasopharyngeal swab is the collection device of choice for the recovery of which organism from the nasopharynix? needle aspirate after surface decontamination - Answer method of choice for recovery of anaerobic bacteria from a deep abscess staphylococcus aureus - Answer Colistin-nalidixic acid agar (CNA) is used primarily for the recovery of: sheep - Answer in the US most blood agar plates are prepared with 5 or 10% RBCs obtained from: c. difficile (clostridium difficile) - Answer cycloserine-cefoxitin-fructose agar (CCFA) is used for the recovery of: enterobacteriaceae - Answer deoxycholate agar (DCA) is usef