Blood agar - Study guides, Class notes & Summaries

Which selective medium is used for the isolation of gram-positive microorganisms? a Columbia CNA with 5% sheep blood b trypticase soy agar with 5% sheep blood c eosin methylene blue d modified Thayer-Martin - Answer a Columbia CNA with 5% sheep blood

MMSC 438 EXAM 2 SET Q&A 1. A bloody stool sample is received in the laboratory and plated to routine stool culture media. The following results arerecorded by the laboratory scientist 24 hours after plating the patient sample:Blood agar: beta-hemolytic coloniesMacConkey: Only lactose fermenting colonies are presentSMAC: 2+ clear colonies presentFurther testing reveals: Oxidase negative, indole positive, MUG negative, motileThe most likely identification is: A. Yersinia enterocolitic...

Complete BOC: ASCP Test Prep 1) After receiving a 24 hr. urine for quantitative total protein analysis the technician must first: a. subculture the urine for bacteria b. add the appropriate preservative c. screen for albumin using a dipstick d. measure the total volume - d (measure the total volume) 1) Following overnight fasting, hypoglycemia in adults is defined as a glucose of: a. <70 mg/dL (<3.9 mmol/L) b. <60 mg/dL (<3.3mmol/L) c. <55 mg/dL (<3.0mmol/L) d. &l...

MLPAO Mock Exam - Questions and Answers (Complete Solutions) Which of the following is a surrogate test that is used to detect donors at high risk for transmitting transfusion-related disease? a) Нерatitis b) HIV c) CMV d) Malaria e) Syphilis Which of the following is a transfusion science test? a) AFP b) DAT c) NH4 d) retic e) CRP Which of the following items is NOT found in cryoprecipitate? a) Factor 1 b) Factor V c) Factor VIII d) Factor XII e) Fibrinogen The following attributes of good...

MICROM 443 Questions with complete solution 2024/2025 What does a Methylene Blue stain show? What color? - correct answer metachromatic granules (volutin, polyphosphate) red/purple What does an Acid-Fast stain detect? - correct answer Mycobacterium species Why do incubate at 35C? - correct answer medically important bacteria grow at body temperature What is Blood agar? - correct answer rich media w/ red blood cells What is Chocolate agar? - correct answer lysed red blood ...

MLT Microbiology Exam Questions with Correct Answers What organism is NOT OXIDASE POSITIVE? - Answer-Yersinia enterocolitica Which organisms are oxidase positive? - Answer-Aeromonas hydrophilia, Pseudomonas aeruginosa, Vibrio parahaemolyticus Rice water stools often contain a pure culture of what organism? - Answer-Vibrio cholerae What is the reagent used for the string test? - Answer-0.5% sodium deoxcholate What allows visibility of acid production by oxidizers in oxidation fermen...

Describe the selective and differential properties of mannitol salt agar (MSA) for the isolation and identification of staphylococci. - As a selective medium, MSA has a high concentration of salt (7.5% NaCl), which is inhibitory to most bacteria other than the staphylococci. As a differential medium, MSA contains the sugar mannitol as a substrate for fermentation and phenol red as a pH indicator to detect the production of acid. S. aureus ferments mannitol and changes the color of the mediu...

ACE ASCP Final Exam Questions and Answers, Latest Updated 2024/2025 | Rated A+. Which of the following condition is the most common cause of increase anion gap? A.Metabolic alkalosis B. Metabolic acidosis Respiratory acidosis Respiratory alkalosis B. Metabolic acidosis High anion gap metabolic acidosis is caused generally by the body producing too much acid or not producing enough bicarbonate. This is often due to an increase in lactic acid or ketoacids, or it may be a sign of kidney fail...

ASCP Review Microbiology questions correctly answered 2023Which of the following is the correct temperature at which an autoclave must be run? -37*C -121*C -25*C 121*C How long is an autoclave run? 15 mins How many lbs per square inch of pressure is necessary when using an autoclave? 15 lbs/sq in Which of the following is the correct depth and pH of a Mueller Hinton plate? -6mm and pH 7.2-7.4 -3mm and pH 6.5-6.8 -4mm and 7.2-7.4 4mm and pH 7.2-7.4 What i...

What are fastidious organisms? - ️️any organism that has a complex nutritional requirement, and will only grow when specific nutrients are included in its diet How is the blood agar selective? - ️️The sheep's blood provided the growth factors for fastidious pathogens How is the blood agar differential? - ️️based on the bacteria's ability to cause hemolysis of blood cells How is the MSA test selective, and what type of bacteria growth does it NOT inhibit (allows to grow)?...