Dental Hygiene National Board (Questions and Answer A+ graded 100% verified latest update)

Dental Hygiene National Board (Questions and Answer A+ graded 100% verified latest update) What are some examples of bio-hazard waste? Correct Answer: Sharps, items that drip of blood and/or saliva, and hard and soft tissues removed from patient The bio-hazard waste or regulated true or false? Correct Answer: True When should we change our mask? Correct Answer: When it becomes wet or soiled with every patient. That includes your fluids as well. What is the purpose of PPE? Correct Answer: Is to minimize the exposure to Aerosol, Spatter, Direct transmission, and Indirect transmission (ASDI) Do disinfectants kill spores? Correct Answer: NO What are some types of disinfectants? Correct Answer: Chlorine-based compounds, iodophors, phenols, quaternary compounds What are some bad qualities of chlorine-based compounds? Correct Answer: corrosive to metals and strong odor What are some bad qualities of phenols? Correct Answer: may leave a film or residue on surfaces What are some bad qualities of iodophors? Correct Answer: can discolor some surfaces yellow What are some bad qualities of quaternary compounds? Correct Answer: not corrosive, but have a lower kill spectrum What would be some good qualities of disinfectants? Correct Answer: rapid, broad spectrum antimicrobial, bacteriocidal, fungicidal, tuberculocidal, virucidal, odorless, easy to use, fast acting, economical, residual effect which it continues to work after it dries, not toxic to touch or inhalation, EPA registered, and disinfects and cleans. Is a spatter invisible to the eye? Correct Answer: NO, can see it when airborne Is aerosol invisible to the eye? Correct Answer: yes, remain in the air for a while What sheet provides an employee with information regarding the hazards of chemicals utilized in the office and how to protect themself? Correct Answer: MSDS (Material Safety Data Sheet) What disinfectant should not be used as a surface disinfectant in the office and why? Correct Answer: Glutaraldehydes, toxic effects of fumes; also corrosive What kind of disinfectants are used in the dental office? Correct Answer: Intermediate What are some methods of sterilization? Correct Answer: Chemical, Dry, and Steam During chemical sterilization, how long at what degree and pressure are used? Correct Answer: 20 min @ 270 degree F @ 20-40 lbs psi During Dry sterilization, how long at what degree are used? Correct Answer: 60-120 min @ 320 degree F During Steam sterilization, how long at what degree and pressure are used? Correct Answer: 20-30 min @ 250 degree F @ 15-30lb psi What method of sterilization involves the least temperature? Correct Answer: Steam at 250 degree F What are some considerations when using the chemical method? Correct Answer: ventilation is necessary, may damage rubber and plastic items What are some considerations when using the dry method? Correct Answer: recommended for metal instruments, avoid paper products, may damage, rubber and plastic items, and not recommended for handpieces. What are some considerations when using the steam method? Correct Answer: corrodes non-stainless steel instruments, dulls instruments and burs, ok for some plastics; cotton rolls and gauze, paper packages come out wet and tear. What is the only way to tell if the instruments are sterilized? Correct Answer: A weekly spore test Does indicator tape always guarantee sterility? Correct Answer: NO, only spore test What spore test is used with chemical sterilization? Correct Answer: Geobacillus (formerly Bacillus) stearothermophilus What spore test is used with dry sterilization (static air)? Correct Answer: Bacillus atrophaeus/ subtilis What spore test is used with steam sterilization? Correct Answer: Geobacillus (formerly Bacillus) Stearothermophilus What 2 sterilization methods use the spore test Geobacillus (Bacillus)? Correct Answer: Chemical and Steam What is another name for spore testing? Correct Answer: Biological Indicators What should the Dental Hygienist do if there are any questions regarding the patients medical hx? Correct Answer: Always contact the patient's physician first What is the systolic pressure? Correct Answer: ventricles of the heart contract sending blood into circulation What is the diastolic pressure? Correct Answer: ventricles of the heart relax to fill with blood returned by circulation What is tachycardia? Correct Answer: rapid pulse rate; over 100 beats per min. What is bradycardia? Correct Answer: slow pulse rate; below 50 beats per min. What is the normal HR for children (1-10yrs)? Correct Answer: 70-120 beats per min. What is the normal HR for adults? Correct Answer: 60-100 beats per min. What is the normal HR for infants? Correct Answer: 100-160 beats per min. What is the normal blood pressure for adults? Correct Answer: > 120/80 What is stage 1 hypertension (mild) considered? Correct Answer: 140/90 - 159/99 What is stage 2 hypertension (moderate) considered? Correct Answer: 160/100 + What is the normal respiration rate for a child? Correct Answer: 14-26 breaths per min. What is the normal respiration rate for an adult? Correct Answer: 12-20 breaths per min. What is the normal respiration rate for an infant? Correct Answer: 30-60 breaths per min. Where do we place the cuff on an adult for blood pressure? Correct Answer: over the brachial artery Is high blood