Clinical Chemistry: Clinical Laboratory Equipment and Supplies

corex

which type of high thermal resistant glass is 6x stronger than borosilicate glass and is ideal for high temperature thermometers, graduated cylinders, and centrifuge tubes?

polycarbonate resin

which plasticware resin is described as glass-clear, shatterproof, twice as strong as polypropylene, but unsuitable for use with bases like amines, ammonia, and alkalis?

low actinic glass

a medtech needs to store light sensitive compounds such as bilirubin, carotene and vitamin A in the 300 - 500 nm range. what type of glassware should be used?

soak in HCl solution or HNO3 solution followed by thorough washing

what special cleaning technique is required when laboratory glassware contains heavy iron residue or iron determination is needed?

0.5%

what is the allowable error for a pipette to maintain acceptable clinical laboratory?

to contain

which pipette classification holds a specific volume but delivers the exact volume only when a ‘‘rinse-out’’ mechanism is employed (ex. sahli’s pipette)

serologic pipette

a measuring pipette graduated to the tip, typically requiring the last drop to be blown out (indicated by a double frosted ring), is a:

forward pipetting

which pipetting technique is recommended for standard aqueous solutions, involving pressing the plunger to the first stop for filling and pushing to the second stop for emptying?

tachometer, strobe light and timer

routine speed check for laboratory centrifuge should be performed every 3 months using which set of equipment?

class S

for monthly calibration of analytical balances

high thermal resistant glass (borosilicate glass / pyrex, kimax, exax)

what type of glass routinely used in clinical chemistry consists of low alkali content and resists heat, corrosion and thermal shock

Vycor

which glass vessel is heatable to 900C can withstand down shock from 900C to ice water and is ideal for ashing and ignition techniques?

high alkali resistant (soft glass)

what type of glass is boron free, less thermal resistant that borosilicate glass and used for strong alkali solutions and digestion with strong alkalis?

soda lime glass

which glass is known as standard flint glass, is a mixture of Si, Ca and Na, has the lowest cost and releases alkali into pipetted liquid?

polyolefins

which unique group of plastic resins includes polyethylene and polypropylene is unaffected by acids, alkalis and salt solutions, but is slowly penetrated by organic acids, essential oils and halogens?

tygon

which non toxic, clear plastic is modified PVC soft and flexible and quickly slips over other surfaces while gripping tightly in glass or metals?

soak in 2-4% cresol followed by autoclave and thorough washing

what is the special cleaning technique required to remove bacteriologic contamination from labware?

soak in 50% HCl or a mixture of 1% FeSO4 in 25% H2SO4

what special technique is used to remove permanganate stains from laboratory glassware?

less than 20 seconds

how long is the drainage time when using aqueous solutions/reagents in To Deliver (TD) pipette?

mohr pipette

what type of measuring pipette is calibrated between two marks and does not have graduation extending to the tip?

ostwald-folin pipette

which type of transfer pipette has a large oval bulb a blow out ring and is used for measuring viscous fluids like blood and serum?

reverse pipetting technique

which automatic pipetting technique is commonly used with air-displacement pipettes to avoid the risk of sample splash, foaming or bubble formation when pipetting small volumes?

Piston uses air movement to create suction; the piston does NOT come in contact with the liquid

in an air displacement automatic pipette what creates the suction and does it come into direct contact with the liquid?

ultracentrifuge

what equipment is capable of speed up to 100,000 rpm and is used for lipoprotein fractionation

angle-head centrifuge

what centrifuge type fixed angle allows small particles to sediments more rapidly and produces a slanted sediment surface?