why is the recommended incubation procedure for the API 20e system 18 to 24 hours ?

Q: What is the purpose of the RPR (RAPID PLASMA REAGIN )

A: Since you have asked multiple questions, we will solve the first question for you, If you want any…

Q: What is the purpose of an agglutination reaction test?

A: Antigen are the foreign substances to the body in the form of proteins, carbohydrates which may…

Q: What the types of microorganisms contamination?

A: Microbial contamination generally occurs when a food has been poisoned by microorganisms, including…

Q: How is 10^4 derived? Please show all calculation steps. # of cells per mL = (Average)*DF*10^4 %3D

A: HEMOCYTOMETER: It is the tool used in most of the biochemistry and biology labs in order to count…

Q: A plate has 72 colonies with a total dilution factor of 10-7, 0.1 ml was pipetted onto the plate,…

A: Colony forming unit (CFU) is a unit that tells us the amount of viable cells present in the given…

Q: What is the main purpose of haemolytic tests? What is the main substance responsible for this…

A: Pathogenic microrganism are the microbes that has capability to cause disease and infection inside…

Q: Which microbe requires serum components to be added to the growth medium?

A: Some microbes are nutritionally fastidious and hence needs some substances to be added to the growth…

Q: What are the ingredients Its uses in hemodialysis Explanation (AK 200 Ultra S) of the device, even…

A: Introduction Hemodialysis:-It  is a process by which a machine is used to filter urea and other…

Q: Why is it a mistake to use the same syringe, even with a new, sterile needle?

A: Injections are used for administration of drugs, contraceptives, vaccines or any other therapeutic…

Q: What will pose an ethical issue in these procedures are performed - sterilization?

A: Sterilization is a permanent method of family planning. It is one of the most common method of…

Q: Why might the enteropluri tube system fail to identify the organisims tested?

A: The enteropluri tube system is used in the rapid identification of the gram-negative bacilli from…

Q: Make illustrated diagrams of stepwise procedure for the performance of the following tasks applying…

A: Aseptic is a central and significant laboratory knowledge in microbiological sciences. For a number…

Q: When performing a Standard Plate Count, why are the counts reported as colony-forming units (CFUs)…

A: Standard plate count is a technique for estimating microorganisms. It is used to calculate the…

Q: What are the advantages and disadvantages of the viable plate count method?

A: Microbiology is the branch of science that studies microscopic organisms. As microorganisms are not…

Q: how to calculate Calculate PFU -plaque forming units

A: PFU ( plaque forming units) is  the Virus titer (Virus per ml).  A plaque-forming unit (PFU) is a…

Q: You counted 40 colonies on a plate in your dilution series. The plate was inoculated with 1.0ml from…

A: A microbial sample will have enormous amount of cells. To estimate this by calculation, the sample…

Q: Upon dislodging cells from the plate, you had the following cell counts using 4 different squares of…

A: Hemocytometer: It is a device first invented by " Louis charles malassesz". It is used to count the…

Q: Briefly explain the shake-tube inoculation

A: Inoculation is the key process in the microbiology in which inoculum is extracted.

Q: What does the presence of gas in the Durham tubes for the presumptive test indicate?

A: Presumptive test : it is a test to identify bacteria from the large soil, water medium.  It is known…

Q: What is a Urease test

A: Urease Test:                  A biochemical test that detects the alkaline fermentation of urine…

Q: Which medium is used for indole test and Coagulase Test?

A: Biochemical tests are used to identify microbial diversity based on variations in the biochemical…

Q: In routine stool examination, what is a Floatation Technique? a.) What the procedure is used for…

A: Hello, as your question has many parts, we will only answer the first three parts for you and if you…

Q: What is the significance of serial dilution in determining viable count?

A:

Q: Why is it a mistake to use the same syringe, even with new , sterile needles?

A: Contamination is the presence of any impurity, constituent, or any unwanted element that can infect,…

Q: If the five-digit code that is tabulated cannot be found in the EnteroPluri-Test Codebook, what that…

A: Prokaryotes are the primitive organisms that were the first to develop and harness life on Earth.…

Q: If you count 70 colonies from a urine culture obtained using 0.001ml calibrated loop, how many…

A: CFU or colony forming unit is an unit of measurement that is used to estimate the viable microbial…

Q: Agar was not completely set prior to inoculating with the organism. Effect: Rationale:

A: Bacterial cultivation requires specific types of medium that can provide some of the basic…

Q: What are the clinical significance of red, black, and gray colored stool specimens?

A: Stools are collected to test several disease conditions like liver disease ,kidney disease , any…

Q: What are the factors to consider when handling a stool sample? Also, in 6-7 sentences, discuss  the…

A: Stool is also known as faeces.It consists of the food which is undigested , bacteria, mucus and some…

Q: specimen must not be frozen nor placed

A: Introduction:- Specimens should be collected on clean, wide-mouthed plastic containers with a tight…

Q: How much serum is needed to create 2μL of a 1:20 dilution

A: Question is related to drug calculation .  Detailed solution in step 2.

Q: What items are considered semi-critical and what is their level of disinfection in the Operating…

A: A hospital is a place or health care institution that provides care and treatment to the patients…

Q: Why is serum beta glucan testing used for diagnosing an invasive candidiasis?

A: Yeast a type of fungus. Candida is a genus of yeast. When any member of the genus Candida causes a…

Q: Do the results from a confirmed coliform test represent total or faecal coliform and why?

A: Fecal coliform bacteria may occur in ambient water as a result of the overflow of domestic sewage or…

Q: What microorganisms other than coliforms are likely to give positive presumptive test?

A:

Q: Based on these blood agar results, can you identify what type of hemolysis are occurring in these…

A: Hemolysis is the destruction of red blood cells. It can occur due to different causes and leads to…

Q: which three items requires the use of Manual Antimicrobial Susceptibility Testing

A: Answer: Antimicrobial Susceptibility Testing : It is the manual testing for the drug used as an…

Q: What items are considered non-critical and what is their level of disinfection in the Operating…

A: The process that eliminates all pathogenic microorganisms, is known as disinfection. This process…

Q: What kinds of organisms may be plentiful in a milk sample, yet give a negative reductase test?

A: Methylene blue reduction test is based on the principle of oxygen reduction by increased microbial…

Q: In the entrropluri tube system which test require the addition of reagents after the incubation time…

A: Entreropluri test system is a Enterobacteriaceae identifying system. It is use to identify some gram…

Q: James inoculated a species of bacteria into KIA media and realized that it has a yellow butt and a…

A: Introduction KIA or the Kilger Iron Agar is a differential media that helps in distinguishing the…

Q: if the average weight of content is 275 mg, Calculate the permissible limit (first) and the…

A: Average weight of the Content is specified as 275 mg. If there is a batch of 20 capsules, then the…

Q: Why are aseptic techniques implemented during inoculation?

A: Aseptic means without contamination and Inoculation means transfer of a bacterial sample onto a…

Q: Two tests that were performed to confirm the presence of an alpha hemolysis strain of Strep were the…

A: Hemolysis is breaking down of the haemoglobin where as alpha hemolysis is partially breaking of…

Q: Why are hemolyzed samples rejected and what procedural factorscauseshemolysis?

A: When the red blood cells in a sample burst, a hemolyzed test result, also known as 'haemolysis,'…

Q: Define micro-injection.

A: A pipette is a laboratory tool commonly used in biology, chemical, and medicine to transport a…

Q: Why are the streak plates incubated at 7°C?

A: