Why is skin contamination such a big problem in blood culture test?

Q: what is the procedure and materials you need to stain Staphylococcus aureus?

A: Staphylococcus aureus is a Gram-positive, round-shaped bacterium hat belongs to the Firmicutes and…

Q: Is  Bacillus cereus negative or positive for methyl red, and  Voges-Proskauer tests?

A: The methyl red (MR) test detects whether bacteria can ferment the glucose or not. It detects the…

Q: Why is it important to limit the quantity of cells used to prepare a smear?

A: A thin layer of cells or tissues that are taken from the body of an organism under study which is…

Q: What is the role of H2SO4 in Hopkins cole test?

A: The Hopkin's Cole test, sometimes known as the 'glyoxylic acid test,' is a method for detecting the…

Q: Assuming that these are the 12 microplates. What is wrong with the result of the test? What do you…

A: There are few important points : ELISA : Enzyme linked immuno sorbent assay is used in diagnosing…

Q: What is the purpose of Thick smear? Purpose of Thin smear?

A: Blood smear:-Also known as peripheral blood smear. -Blood smear has many different uses ranging from…

Q: Triple Sugar Iron slant for Staphylococcus Epidermidis , tell me the results I would get if I did…

A: The Triple Sugar Iron (TSI) test may be a microbiological check roughly named for its ability to…

Q: What is the chemical basis of the Xanthoproteic Test? Give the chemical reaction involved.

A: Protein is a nitrogenous organic macromolecule that is essential to human health. It is responsible…

Q: which bacteria is Coccobacillary,gram negative, non motile and negative oxidase test?

A: Bacteria are microscopic organisms which belong to prokaryote because these are unicellular…

Q: Ehat is the patient disease? If there is. Symptoms are morning fever and clogged nose. Attached the…

A: According to symptoms and lab investigation it's sinusitis condition ( A condition in which the…

Q: What specimen would be collected for an antigen test? Why is it important to not touch the tip of…

A: Coronavirus disease (COVID-19) is a recently found coronavirus that causes an infectious disease.

Q: Why was a blood agar, rather than a nutrient agar, plate used for the culture from your mouth?

A: Cultured bacteria are any bacteria that grow in the lab by the microbiologist using the required or…

Q: Why is there a need to use a staining agent in observing the specimen?

A: Staining agent:          The things that owes-out stains were recognized as staining agent,…

Q: What is Clinical test?

A: A disorder of structure or function in any living organism is called disease. This generally…

Q: Inoculation Positive Results Negative Purpose Results Test Medium Reagents Mannitol Salts Loop Agar…

A: Biochemical reactions aid in identification of different bacterial species based on their…

Q: List at least 10 laboratory tests that use whole blood as a test sample.

A: 10 laboratory tests that use whole blood as a test sample.

Q: What is the significance of heat fixing the smear?

A: Gram staining is a common laboratory technique in microbiology that is used to differentiate…

Q: In the Kirby-Bauer test, which of the following must be consistent? a. concentration of bacteria…

A: Kirby-Bauer test: It is an antibiotic test also known as KB testing. It is used to test which…

Q: Can hand sanitizer kill West Nile virus

A: Sanitizers that have more than 60% alcohol are generally recommended for preventing diseases.…

Q: Is proteus vulgaris positive or negative in lia test? Why?

A: Proteus vulgaris is a gram negative bacteria that test positive for indole and catalase production.…

Q: Explain the reason for the effect on mass spectroscopy method of diagnosis by culture conditions.

A: Mass Spectrometry is an analytical method. It is used to quantify known materials to identify…

Q: On a spread plate, you count 50 colonies. The plate was created from a 10^-2 dilution and 0.2 mL of…

A: Microbial culture refers to the method of letting the micro-organisms multiplying in the culture…

Q: What are the possible sources of contamination that may result during the streak plate procedure?

A: The streak plate procedure is used to isolate microbial colonies in pure form. During the procedure,…

Q: What are the examples of organisms that belong to the positive test in in-dose test?

A: Tryptophan is an amino acid that can undergo deamination. Indole is generated by reductive…

Q: Which of the following is not meant to reduce contamination of yoru sample? avoiding hand contact…

A: A microbial culture is done to multiply the specific strains of the microorganisms under specific…

Q: What are the advantages and disadvantages of using the Wet Mount technique?

A: As per bartleby guidelines, we are suppose to answer only one question kindly post other separately.…

Q: How common is the flotation technique being done in the Philippines?

A: Keeping in the eye the increase in a number of gastrointestinal infections, the best solution that…

Q: Why are specimens for bilirubin testing protected from light? Discuss handling procedures for…

A: Bilirubin is a yellow pigment that is present in bile. It is formed as a result of breakdown of red…

Q: Why is it necessary to perform a plate count in conjunction with the turbidimetry procedure?

A: Plate counting is one of the most fundamental techniques used in microbiology. It is used to…

Q: A newborn presents with sepsis. Blood samples are taken and sent for culture. Gram stain, blood agar…

A: Sepsis in neonates is usually blood infections, which causes severe inflammation in the body. It can…

Q: Modified Acid-Fast Staining used for O stool blood O bon O tooth

A: Introduction Histology is the study of the microanatomy of cells, tissues, and organs as seen…

Q: erial slide agglutination technique important in diagnostic procedure?

A: Immunoassays are bioanalytical ways that use the specificity of an antigen-antibody reaction to…

Q: Microorganism that has the urease enzyme present a O red (or pink) O yellow (or peach) color in the…

A: The Urease test had been developed by the microbiologist Christensen. This test is used particularly…

Q: On blood agar plate. What hemolysis is this? (alpha, beta, gamma)

A: Blood agar is both enriched and differential media that contains 5% of the sheep blood. Blood agar…

Q: A patient has subcutaneous nfection and the specimen is submitted on a swab . Explain why this is an…

A: Several biological tests involves testing of the the samples from the infected individuals body.…

Q: Gram stain blood bottle what the result shows, what the result means,

A: The Gram staining technique is primarily helpful in the identification of the bacterial type. The…

Q: Other than the PYR test, what is another use of the PEP reagent?

A: PYR is a colorimetric method used to detect the presence of pyrolidonyl arylamidase activity in a…

Q: The Xanthoproteic test involves what type of reaction?

A: The xanthoproteic reaction is the method that is used to detect a presence of the proteins soluble…

Q: serology (elisa) lab: Why did you need to wash the wells after every step?

A: ELISA is the enzyme linked immunosorbent assay. The main components of ELISA are the antigens and…

Q: Is the ant test the same as the odor test in the physical examination of urine?

A: Kidneys are the main organs of the urinary system. The nitrogenous waste is usually excreted in the…

Q: What is Hemin test and Benzidine test?

A: Hemin test - Hemin can be produced from haemoglobin by the so-called Teichmann test, when…

Q: While conducting the Hydrogen Sulfide Test (SIM Agar) you open up one of the tubes and it gives off…

A: Hardy Diagnostics is a company that specialises in medical diagnosis. SIM Medium is recommended for…

Q: Name three reasons why the ELISA test is useful in detecting microbes

A: ELISA:            ELISA ~ Enzyme-Linked Immunosorbent Assay                   A screening tool used…

Q: Alcohol hand sanitizers may be used instead of washing with soap and water in all cases except if…

A: Hand sanitizers made with alcohol should include at least 60% ethyl alcohol or isopropyl alcohol.…

Q: The Duquenois–Levine test is a valuable color test for___________.

A: In a forensic chemical analysis of an unknown material, the analytical method is to narrow down the…

Q: Does the gram staining method still have a place in today's world of advanced diagnostic methods? If…

A: Gram staining is a type of staining which is used to differentiate bacteria on the basis of…

Q: Abigail did not dry the top of her agar plate and stored it top up. Now she wants to count colonies…

A: Microorganisms are small organism that cannot be seen by naked eyes. Microorganism can be harmful to…

Q: In product testing, no colonies appeared. Interpretation: Rationale:

A: Ans: Product testing: The product testing is performed as a regular quality control protocol in…

Microbial Growth

The development of microbial growth is influenced by various natural conditions (both physical and synthetic) like pH, temperature, saltiness, gas focus (O2, CO2, and H2), nutrients, water action, and assimilation. Knowing the distinctive physical and chemical factors that influence the development and endurance of microbial growth in the climate will assist with reinforcing endeavors outfitted towards their control. These lines lessen or diminish their harmful impacts on humankind, creatures, and the climate.