Do you think UVC disinfection of N95 face masks is effective? Give two (2) important considerations for UVC disinfection of N95 face masks to be effective?

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

A: Contamination can arise during the preparation of the venipuncture or catheter insertion site, the…

Q: Why 10% bleach disinfectant are most against probiotic?

A: Disinfectant is a chemical liquid that destroys bacteria,  thereby causing disinfection.

Q: Do you think UVC disinfection of N95 face masks is effective? Give two important considerations for…

A: At the time of Covid-19, N95 masks are currently considered critical supplies by the centers for…

Q: Why does treatment of human skin with alcohol not create a completely sterile environment?

A: Sterilization is the process of getting rid of all the germs on the surface of the object and makes…

Q: - Give two reasons for heat fixing a smear before staining.

A: Heat fixing denatures bacterial enzymes, preventing them from digesting cell parts, which causes the…

Q: How long does it take for coronavirus to be killed on a copper surface?

A: Coronavirus disease, also known as COVID-19, is an infectious disease caused by the SARS-CoV-2…

Q: Does the Gram stain provide information regarding a bacterium's susceptibility to antimicrobial…

A: The Gram stain is performed for the determination and classification of the bacteria. In Gram…

Q: In your own words, Explain the basic rules in applying the dressing and the bandaging

A: DRESSING and BANDAGING:    this is done to cover the wound from contamination and stop bleeding .…

Q: Why bleach disinfectant will the most effective against probiotic?

A: Probiotics are live microorganisms that have health benefits when consumed. These are usually…

Q: Why are products mixed with phenols and surfactants preferred when cleaning surfaces?   Question 14…

A: Disinfection is the procedure by which various bacteria, microbes can be killed by using different…

Q: Which disinfectant is the most effective? and why? Which disinfectant(s) is (are) bactericidal? and…

A: Disinfectant A is most effective as  there is no growth of salmonella choleraesuis at dilution 1:2…

Q: What are Romanowsky stains? Name four of these.

A: Staining is a technique used to enhance contrast in samples , generally at the microscopic level.…

Q: Determine the microbiology tests used to identify the microorganism(cutaneous anthrax) i. Gram…

A: Cutaneous anthrax is the most common form of anthrax infection, and it is also considered to be the…

Q: a tabular form, sufficiently list all unacceptable smears and their causes.?

A: We know Examination of blood film or smear  is very essential to rule out the certain diseases/…

Q: 1. Give the method of sterilization of these laboratory apparatuses how they are sterilized;…

A: Method of sterilization: Inoculating loop:              Sterilized by poking it at an angle through…

Q: What do you mean by ultrafiltration?

A: The excretory system is the system that performs excretion, the bodily process of discharging…

Q: explain why disinfectants that has a residual is preferable to one that does not

A: Introduction Disinfectants are chemical substances or compounds that are used to kill or inactivate…

Q: Name 4 different sterilization/disinfecting methods, how they fight microbes,

A: STERILIZATION :  It is the process in which removal of all the living forms (microorganisms) and…

Q: What would your plate look like if we did not use aseptic technique to place the antimicrobial disks…

A: The Kirby-Bauer disk diffusion test is utilized to determine the susceptibility of a pathogenic…

Q: How does pasteurization help us in our everyday life even before it was discovered?

A: As recently as the nineteenth century, humans risked serious illness or even death by drinking…

Q: How do we prepare smear

A: The preparation of a smear is required for many laboratory procedures, including the Gram-stain, for…

Q: Is  UVC disinfection of N95 face masks  effective?  Give two (2) important considerations for UVC…

A: Decontaminating masks could be effective against the shortage of masks in pandemics.UVC…

Q: What are the applications for Pasteurization, Autoclaving, UV irradiation, and Gamma irradiation?

A: It is required to mention the application of Pasteurization, Autoclaving, UV irradiation, and Gamma…

Q: I Why does't a negative stain colorize the cells in the smear?

A: Staining is a technique which is used for enhancement of contrast in samples mostly at the level of…

Q: Preservatives are added to the following pharmaceutical products EXCEPT Select one: Ophthalmic…

A: Any substances that are added to the foods and pharmaceutical products to prolong its shelf life…

Q: can you draw the following on positive simple staining in 1000x objective? thank you.…

A: For the purpose of staining, dyes are selected based on their chemical properties and the specimen…

Q: Is the pH level of bleach higher, lower, or the same as H. influenzae, S. aureus and S. pneumoniae?

A: Bleach is an alkaline solution made of sodium hypochlorite (NaClO) that is used in both the domestic…

Q: microbial CELLS is the most RESISTANT to disinfectants and antiseptics?

A: Prions are the infectious agent which are misfolded proteins having  the ability to transmit their…

Q: What is the difference between cleaning, sanitizing, and disinfecting?

A: Cleaning, sanitization and disinfection are the process of making an area free from all the visible…

Q: An inadequate priming or poor priming technique will cause a serious damage in patient. Would you…

A: Hemodialysis: It is a treatment which is done to purify the blood by removing the wastes , salts and…

Q: What are the principle and basic concepts of SMEAR PREPARATION? (please explain it thoroughly in a…

A: Introduction A smear is a small amount of culture spread in a very thin film on the surface of the…

Q: Match the expected result (purple, red, or colorless) to the following descriptions of Gram-stained…

A: Various characteristics such as shape,arrangement of cells, formation of capsule or spores can be…

Q: True or false? it is possible to kill or remove all microorganisims by hand washing or using…

A: Microorganisms are small organism that cannot be seen by naked eyes. They include bacteria, fungi,…

Q: How does Pseudomonas aerogenosa contribute to the virulance of the pathogen?

A: Pseudomonas aeruginosa is a bacterium which is liable for serious infectious diseases, chronic…

Q: What advantages does alcohol have over hand soap for antisepsis of the skin?

A: Antiseptics are the chemical substances that inhibit the growth or kill the microbes that reside on…

Q: Why is it necessary to make a skin puncture to a depth of 3mm?

A: Phlebotomy refers to the process of puncturing the vein with a cannula to collect blood. Blood…

Q: Benefits of UV light sanitizer spray gun

A: Spray gun can be of two types. First type of spray gun that spray out wet mist while the second type…

Q: In hospitals they remove potential pathogens from surfaces using------------: Antiseptics…

A: Sterilization It is a process of complete removal of micro-organism. It include several methods such…

Q: Why does UV light have to be directly exposed and waved around an object that needs to be…

A: Ultraviolet (UV) radiation is a part of electromagnetic spectrum that lies between X- rays and…

Q: When a disinfectant or antiseptic's effectiveness is expressed as a phenol coefficient, a number…

A: Phenol coefficient:  It is a way to compare bactericidal (killing bacteria) nature of a chemical…

Q: What are some factors used to determine the BSL necessary for working with a specific pathogen?…

A: Answer 1)  BSL is(Biosafety Level)  determined by agent's infectivity , its ease of transmission ,…

Q: which antiseptic do you think will be most effective against the probiotic? Why?

A: Probiotics are live microorganisms that have direct health benefits when consumed . They are usually…

Q: LZ AMC VA CTR

A: KIRBY BAUER METHOD- The antibiotic sensitivity test is performed by using the agar diffusion method…

Q: Give the three disadvantages of using irradiation.

A: Irradiation is a comparatively newer technology of food preservation in which food item is…

Q: What is the effect when xylene is not removed when staining?  What is/ are the specific action/s of…

A: Staining is a procedure in which the coloured dye or a stain is added to a specimen so that it may…

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: why is it important that you disinfect your work area both before and after working with bacteria?

A: Bacteria are present everywhere in each and every corner,present on non-living surfaces and as well…

Immune Disorders

The collaboration between the cells and proteins that work together as a defense system against infection comprises the immune system.Each of them performs a variety of tasks to recognize and/or react against a foreign body.