Ascp mixed recalls

Ascp mixed recalls MICROBIOLOGY 1. Which of the following tests can be utilized to differentiate Morganella from Providencia? A. Phenylalanine Deaminase and Lysine Deamination B. Indole test and Vogues-Proskauer C. Citrate and Gas production D. Lactose fermentation and Methyl Red test 2. An oxidase negative coccobacillus isolated from a urine specimen grows well on MacConkey, giving a purplish hue. It is resistant to many antimicrobials. a. Pseudomonas b. Acinetobacter c. E. coli d. Neisseria 3. A gram-negative bacillus has been isolated from feces and the confirmed biochemical reaction fit those of Shigella. The organism does not agglutinate in Shigella antisera. What should be done? a. Test the organism with a new lot antisera b. Test with the Vi antigen c. Repeat the biochemical test d. Boil the organism and retest with the antisera 4. Description of morphology of Actinomyces mycetoma. a. Broad base, branching colored brown b. Broad base, septate, bacillary c. Thin walled, branching colored brown d. Thin walled, septate and bacillary form 5. Description of Zygomycetes a. Septate hyphae b. Septate hyphae c. Aseptate hyphae with sporangiospores d. Aseptate hyphae with basidiospores 6. The reverse CAMP test, lecithinase production, double zone hemolysis, and Gram stain morphology are all useful criteria in the identification of: a. Clostridium perfringens b. Streptococcus agalactiae c. Propionibacterium acnes d. Bacillus anthracis 7. An anaerobic gram-negative coccus is found in a patient’s sample after jaw surgery. What organism would it be? a. Prevotella b. Peptostreptococcus c. Veilonella d. Porphyromonas 8. Virulence factor of Neisseria gonorrheae a. Pili, endotoxin, Polysaccharide capsule b. Protein A, endotoxin, Pili c. Teichoic Acid, Pili, exotoxin d. Pili, capsule, exotoxin 9. An ATCC control sample for Streptococcus agalactiae and Staphylococcus aureus utilized for CAMP test give a negative result. What should the technologist do to determine if the specimen control is actually Streptococcus agalactiae? a. Repeat the CAMP test using more than the initial numbers of Staphylococcus organism utilized from the initial CAMP test. Then increase the incubation time for some fastidious organism to have ample time to grow. b. Perform a reverse CAMP test. Streak the test organism, Streptococcus agalactiae down the center of the plate. Staphylococcus aureus is streaked at right angles to Streptococcus agalactiae. A positive reverse CAMP test will result to formation of a narrow head shaped hemolysis pointing towards Streptococcus agalactiae. c. Perform a reverse CAMP test. Streak the test organism, Clostridium perfringes down the center of plate. Streptococcus pyogenes is streaked at right angles to Clostridium perfringes. A positive reverse CAMP test will result to formation of narrow head shaped homolysis pointing towards Streptococcus agalactiae. d. Perform a reverse CAMP test. Streak the test organism, Clostridium perfringes down the center of the plate. Streptococcus agalactiae is streaked at the right angles to Clostridium perfringes. A positive reverse CAMP test will result to formation of a narrow head shaped hemolysis pointing towards Streptococcus agalactiae. 10. Patient with respiratory disease gave a specimen. When cultured in sheep blood agar, beta-hemolytic gram-positive cocci was seen. What to do next: a. Test with bacitracin