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What are Class A fire extinguishers used for?
- Electric equipment
- Flammable liquids
- Ordinary combustibles
- Powdered metal (combustible) material - Correct Answer - Ordinary
combustibles.Class A fire extinguishers are classified as ordinary combustible.Additionally, Class A fire extinguishers have a numerical rating based on UL-conducted tests and designed to determine the extinguishing potential for each size and type of extinguisher
Which part of the microscope directs and focuses the beam of light from the bulb onto the material under examination?a.Aperture b.C- mount c.Condenser d.Diaphragm - Correct Answer - Condenser The condenser is the substage lens of the microscope that focuses light on the specimen slide 1 / 4
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pg. 2 How many milliliters can a 3% solution make if 6 grams of solute are available?a.100 mL b.200 mL c.300 mL d.400 mL - Correct Answer - 200 mL 3% of solution means 3 g of solute in 100 mL of solution.
- g of solute contains = (100/3) mL
So, in 6 g of solute = (100/3) x 6 =200 mL.200 mL of 3% solution is needed for 6 g of solute.
When seven points in a row in an upward or downward direction are seen on a quality control graph it is called a a.deviation.b.shift.c.trend.d.variance. - Correct Answer - trend.A trend is seven points in a row in an upward direction or seven points in a row in a downward direction. With a trend, it doesn't matter if the centerline is crossed
What category of bioterrorism agents include pathogens that are moderately easy to disseminate, result in moderate and low morbidity rates, and require specific enhancements of the CDC's diagnostic capacity and enhanced disease surveillance? 2 / 4
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pg. 3 a.Category A b.Category B c.Category C d.Category D - Correct Answer - Category B Bioterrorism agents are a concern to laboratories. These agents are divided into categories A, B and C; and Category B agents have the second highest priority. Category B agents have moderate morbidity (suffering from the disease) with low mortality (death) rates. Ricin toxin is an example of Category B agent.
What category of bioterrorism agents have the highest priority and pose a risk to national security because they can be easily disseminated or transmitted from person to person, result in high mortality rates and have the potential for major public health impact?a.Category A b.Category B c.Category C d.Category D - Correct Answer - Category A
Bioterrorism agents are a concern to laboratories. These agents are divided into categories A, B and C. Category A agents have the highest priority. Anthrax and Smallpox are examples of Category A agents
What are two general sources of blood for clinical laboratory tests?
- In vitro and in vivo blood
b.Peripheral (or capillary) blood and venous blood 3 / 4
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pg. 4 c.Serum and plasma d.Venous blood and in vivo blood - Correct Answer - Peripheral (or capillary) blood and venous blood The Clinical and Laboratory Standards Institute (CLSI), formerly the National Committee for Clinical Laboratory Standards (NCCLS), has set standards for the collection of venous blood (venipuncture, or phlebotomy) and capillary blood (skin puncture).
What category are agents anthrax, botulism, plague, smallpox, tularemia, filoviruses, and arenaviruses classified as?a.Category A b.Category B c.Category C d.Category D - Correct Answer - Category A Category A are pathogens that are rarely seen in the United States. These agents have the highest priority; organisms in this category pose a risk to national security because they can be easily disseminated or transmitted from person to person and result in high mortality rates and have the potential for major public health impact.
Which three veins are most frequently used for a venipuncture?a.Cannula, fistula, and median cubital b.Cephalic, basilic, and median cubital c.Cephalic, cannula, and median cubital d.Cephalic, fistula, and median cubital - Correct Answer - Cephalic, basilic, and median cubital
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