Enterics Study guides, Class notes & Summaries

1.State the medical relevance of the Enterobacteriacea family. - An estimated 80% of all clinical samples are positive for the presence of members of the family Enterobacteriaceae suggesting they are a significant source of bacterial pathogens to humans. Since this group is of medical relevance, we will use the Enterobacteriaceae as a pool of unknown bacteria from which your investigative team will select one organism and use the numerous biochemical tests to ascertain the bacteria's ident...

What sugars does triple sugar iron agar contain? correct answer: 1% Lactose 1% Sucrose 0.1% Glucose (Dextrose) What is TSI used for? correct answer: To differentiate enterics based on the ability to reduce sulfur and ferment carbohydrates What is fermented with a red (alkaline) slant and a yellow (acid) deep? (K/A) correct answer: Only glucose What is fermented with a yellow (acid) slant and a yellow (acid) deep? correct answer: Glucose and Lactose and/or Sucrose What is fermen...

Microbiology Lab: KIA/TSI Test 31 Questions with Verified Answers What five things are being tested in a KIA/TSI test? - CORRECT ANSWER 1. Glucose fermentation 2. Lactose fermentation 3. Sulfur reduction 4. Gas production 5. Amino acid degeneration What happens to the color of the tube when glucose is fermented? - CORRECT ANSWER The sugar is fermented and acid drops the pH, this causes the tube to turn yellow When the butt of the slant is yellow but the rest of the slant is pink...

USMLE Exam Practice Questions With Answers Latest Updated 2023-2024 | 100% Verified. Vasculitis associated with chronic Hep C - ANSWER-cryoglobulinemia Best blood test for polyarteritis nodosa - ANSWER-There is none. Get abdominal angiography first, then biopsy of muscle, skin, or sural nerve. Churg-Strauss - ANSWER-vasculitis + eosinophilia + asthma Takayasu's arteritis - ANSWER-young asian female with diminished pulses (usually preceeded by fatigue, weight loss, arthralgia, anemia, eleva...

TSI Agar Exam 49 Questions with Verified Answers What is the agar used in the Triple Sugar Iron Agar - CORRECT ANSWER TSI (triple sugar agar medium) slant medium What does the TSI agar diffrentiate - CORRECT ANSWER it differentiates bacteria based on sulfur reduction and glucose, lactose, and sucrose fermentation What is the substrate used in the TSI experiment? - CORRECT ANSWER Sodium thiosulfate What is the enzyme used in the TSI experiment - CORRECT ANSWER Thiosulfate reductase ...

GTC BIO 2117 Test 4 Review Actual Exam 2023 Graded A What do we call antibiotics that kill gram negative and gram positive bacteria? - Broad spectrum drugs (antibiotics) are effective against both gram negative and gram positive bacteria. What do we call it when we give the patient 2 or 3 different antibiotics a once? Why would we do that? - Combination chemotherapy. Pathogens are capable of becoming resistant to a single agent, but combination chemotherapy (using more than one drug) mak...

USMLE Final Exam Practice Questions and Answers Latest Updated 2023-2024. Best blood test for polyarteritis nodosa - ANSWER-There is none. Get abdominal angiography first, then biopsy of muscle, skin, or sural nerve. Churg-Strauss - ANSWER-vasculitis + eosinophilia + asthma Takayasu's arteritis - ANSWER-young asian female with diminished pulses (usually preceeded by fatigue, weight loss, arthralgia, anemia, elevated ESR) Best test for Takayasu's - ANSWER-aortic angiography or MRA Bite ce...

USMLE Questions and Answers Graded A+ Updated 2023-2024. Pseudogout associations - ANSWER-hemochromatosis, hyperparathyroidism, acromegaly, hypothyroidism Gout crystals - ANSWER-negatively birefringent needles Pseudogout crystals - ANSWER-positively birefringent needles Vasculitis associated with chronic Hep B - ANSWER-polyarteritis nodosa Vasculitis associated with chronic Hep C - ANSWER-cryoglobulinemia Best blood test for polyarteritis nodosa - ANSWER-There is none. Get abdominal angio...

Pseudogout associations - ANSWER-hemochromatosis, hyperparathyroidism, acromegaly, hypothyroidism Gout crystals - ANSWER-negatively birefringent needles Pseudogout crystals - ANSWER-positively birefringent needles Vasculitis associated with chronic Hep B - ANSWER-polyarteritis nodosa Vasculitis associated with chronic Hep C - ANSWER-cryoglobulinemia Best blood test for polyarteritis nodosa - ANSWER-There is none. Get abdominal angiography first, then biopsy of muscle, skin, or sur...

MICRO REVIEW – ENTEROBACTERIACEAE Question and answer 100% solvedList some advantages and disadvantages of the use of the rapid identification systems. Advantages: fast, tests an expanded number of biochemical characteristics in a single multi-compartmented strip or tube Disadvantages: expensive, need computer program to identify What piece of information about your unknown should you have prior to using the rapid identification system? make sure it is gram negative, not gram positiv...