-Two hundred patients without chest pain were screened with a new biochemical test that showed 190 had a negative screening result. What is the test's specificity? a) 80% b) 95% c) 90% d) 75%

Q: What is ninhydrin used to detect? How does it work?

A: Proteins are involved in several important body functions and are very much essential for all life…

Q: which of the following are necessary to run a valid elisa test?

A: An enzyme-linked ikmunosorbent assay,also called ELISA is a test that detects and measures…

Q: Why are biochemical tests used to identify microbes?

A: Microbes are living organisms that are very small and can be seen only with the help of a…

Q: To decrease the unwanted biological damage for the patients during an x-ray test, we can: *

A: In laser production, increasing the density of the lasing medium will increase the number of photons…

Q: Why might Gamma irradiation be considered better than using UV radiation?

A: It is required to provide reason that Gamma irradiation is considered better than using UV radiation…

Q: If coliforms were present on a plated sample, would you know with certainty that the coliforms are…

A: Coliform microbes are characterized as rod-shaped, gram-negative, non-spore-forming, and…

Q: What is Clinical test?

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

Q: During a flame test, why is it necessary to use a new splint for each element?

A: A splint is a thin wood/stick used commonly in laboratory for performing a flame test. The splint is…

Q: What is the difference between normal and reverse phase chromatography?

A: The main Difference between Normal and reverse phase chromatography is 1) In normal phase…

Q: What is MODIFIED ALLEN TEST?

A: Blood is an important fluid tissue that is used to transport nutrients and oxygen to all parts of…

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: What is Ames test ?

A: Ames Test : It was devised by a scientist 'Bruce Ames ' .  It is also known as Salmonella…

Q: The VP test is a confirmatory test. In what situations would this test be utilized?

A: The bacteria is the unicellular prokaryotic organism that maintains a definite shape since it…

Q: How do you measure antibiotic sensitivity?

A: Antibiotic susceptibility testing is the measurement of the sensitivity or resistance of a bacteria…

Q: Why are traditional tests such as metabolic test not always used to ID clinically important…

A: Traditional methods for identification of microbes include phenotypic tests or biochemical tests…

Q: What are other methods of measuring the sensitivity of organisms to antibiotic?

A: An antibiotic is a substance that kills or inhibits the growth of bacteria and other microorganisms,…

Q: If a technician examined a Kirby-Bauer assay and found individualcolonies of the plated microbe…

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

Q: On the basis of the appearance of this place, what are you testing for? When you added a reagent to…

A: Catalase is an enzyme that reacts with hydrogen peroxide to form water and oxygen. Catalase enzyme…

Q: For a simple routine qualitative analysis, why is an early morning sample of urine used for the…

A: Qualitative analysis is one of the effective way to diagnose various diseases. The sample for…

Q: What is the proper way of Modified Allen test?

A: Allen test are the tests used to assess the arterial blood supply of the hands. This test is used…

Q: Chromatography technique works on the principle of

A: Chromatography is a technique used for separation of mixture by using a moving solvent.

Q: What is the role of ethidium bromide in the procedure and why do other scientists find alternatives…

A: INTRODUCTION Agarose gel electrophoresis This is a type of gel electrophoresis used for the…

Q: What is the principlels of in-dose test?

A: During the development of drugs, the efficacy of a new drug is typically determined by showing its…

Q: How could hemophiliacs benefit from affinity affinity chromatography?

A: Hemophilia shows the X linked recessive pattern of inheritance.This disease mostly affected the…

Q: Can hand sanitizer kill bacteria?

A: Sanitizer is referred to as any substance or fluid that is used to prevent the spread of pathogens…

Q: Serial dilutions are made in order to determine the level of the antibody in the sample.   True or…

A: Immune system is system which helps our body to fight against the foreign substances which will…

Q: what components makes a test effective?

A: Testing effectiveness It refers to the effectiveness of how testing is performed or how the goal is…

Q: What biochemical tests did we use to distinguish staphylococci from streptococci?

A: Staphylococcus and streptococcus both occur in cocci shape and both are gram positive organisms.…

Q: What is the coliform test when is it used? What is its purpose? How does it function? What are the…

A: All water that is naturally exposed to the atmosphere, such as rivers, lakes, and reservoirs. It is…

Q: Your labmate forgot to use CBB-R250 in the process. Which of the following would  most likely be the…

A: The Coomassie brilliant blue is a staining dye used in the laboratory to quantify, visualize the…

Q: What is the purpose of Durham test ?

A: In the carbohydrate fermentation test, we determine whether the bacteria are able to ferment a…

Q: Can you identify 3 more chemical tests?

A: Proteins are the fundamental biomolecules, consisting of at least one long chain of amino acid…

Q: Properly apply a surgical mask, sterile gown,and sterile gloves ?

A: When we wearing PPE we shoud be strictly aware to maintain sterile environment. We also shoul follow…

Q: A. Why did Lilly use acid fast staining to diagnose the presence of Mycobacterium tuberculosis…

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

Q: cal is utilized as the reagent known as VP-B?

A: The Voges-Proskauer (VP) test is generally used to test if an organism produces acetyl methyl…

Q: Does the antibiotic disk producing the largest zone of inhibition on a plate always correspond to…

A: ZONE OF INHIBITION: The Antibiotic disk contains some Antibiotic that slowly gets dispersed in to…

Q: How are methods of precipitating proteins, such as heat and treatment with alcohol, also successful…

A: Yes they are successful in killing harmful microorganisms..  Precipitation is explain as protein is…

Q: What is similar about this test and the TSIA test?

A: SIM medium is used to check different parameters such as Sulphur Reduction, Indole Production,…

Q: How are dilution susceptibility tests and disc diffusion tests usedto determine microbial drug…

A: Although not all infectious agents require antimicrobial sensitivity testing, it is essential in…

Q: Why can't we determine Vo, Ve and Vt for affinity chromatography?

A: Chromatographic techniques separate macromolecules based on size, ion exchange, or their affinity…

Q: isolating a suspected agent in a sick individual that is absent in a healthy individual is…

A: Answer: Introduction: Robert Koch is a German Physician established four postulates for causative…

Q: What is the principle of Bial's test?

A: Bial’s test is known as biochemical test which is used to detect the presence of carbohydrates as…

Q: For a simple routine qualitative analysis, why is an early morning sample of urine used for the…

A: Urine analysis is considered a medical screening to identify disorders like kidney disease,…

Q: Why do we use 'corrections' to the Creatinine clearance test?

A: Creatinine clear test is used to assess the kidney functions, The amount of the kidney that is…