M(ASCP) LabCE Questions and 100% Correct Answers

This organism is gram(+) cocci in pairs that are often Lancelet-shaped (or "cat-eyes") Streptococcus pneumoniae These colonies were slow growing, small, entire and show soft beta hemolysis. Plump, Gram-negative coccobacilli, lying singly, in pairs and short chains, are seen on gram stain. Most strains are chemically non-reactive except for a positive oxidase reaction and acid produced from dextrose and maltose. What is the name of the isolate? Kingella kingae The oxidase test is utilized to presumptively ID which of the following: Serratia, Enterobacter, Escherichia, Neisseria Neisseria This anaerobic bacteria produces double zone of beta-hemolysis on SBA C. perfringens Edwardsiella tarda is known to be associated with what animal? reptiles There are tiny, gray-white, non-hemolytic colonies growing on the surface of blood agar. Recovery is most often from infections in immune-suppressed hospitalized patients. The Gram stain shows Gram-positive bacilli arranged in a "diphtheroid" pattern. Characteristic for making a species identification of this isolate are negative reactions for all enzymes. What is the presumptive ID? Corynebacterium jeikeium What is the first step of the ethyl acetate concentration procedure? Mix stool with 10% formalin and strain for sediment A suspected nocardioform bacterial species was recovered from sputum. The isolate produced mucoid colonies with pink pigment after 4 days on SBA. Staining demonstrated diphtheroid, Gram positive rods with a few branching filaments. It also stained partially acid fast. The most likely identification is: Rhodococcus equi Acinetobacter does or does not denitrify nitrogen like Pseudomonas does? Does not