Study Set Content:
main cause for great concern out of all the hazards found in a hematology laboratory. it includes blood, urine, feces, spinal fluids and all other body fluids that may contain highly infectious and potentially lethal organism or viruses. These materials are referred to collectively as
Biohazards
two most common viral infection you can get when dealing biohazard specimens
hepatitis and AIDS (auto immune deficiency syndrome)
all biological specimen, regardless of source, should be considered
biohazardous
an absolute necessity in all laboratories to prevent skin contamination with infectious agents or damage from hazardous chemicals
gloves
kind of gloves that is commonly used in non-hazardous and low-infection environments.
vinyl
With high levels of flexibility, protection, and comfort, these gloves are suitable for most medical environments, as long as there is no allergies in this kind of gloves.
latex
these gloves are the ideal choice for anyone who has to handle potentially hazardous and corrosive chemicals. They are also perfectly suited for most medical environments, being exceptionally puncture-resistant and eliminating the risk of latex allergy reactions.
nitrile
these gloves are used when powder can cause serious risk of contaminating samples or allergic reactions.
powder free gloves
purpose of powder in gloves
to absorb the moisture and ensure that it is to put on and take off
Anything that an ungloved person may touch such as door knobs or telephones may never be touched by any individual wearing contaminated glove
Select the Correct Answer:
Contaminated gloves can still be use again after and before proceeding to do work
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Hand washing facilities should be separate from the ones used for washing equipment or for waste disposal
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Use of hand towelettes and cleaning foam are always recommended
Select the Correct Answer:
duration of handwashing
40-60 sec
handling of specimen tube stoppers
- Tubes must be stoppered during centrifugation to avoid aerosol contamination and leaks during the process.
- The tube stopper must be covered with absorbent materials such as gauze to prevent spraying of the specimen.
- Availability and use of cell counting instruments that has the ability to pierce the tube stopper during sampling to prevent the need on opening the tube during analysis is highly recommended.
- The use of face shield or googles or any clear Plexiglas shield between laboratorian and blood sample being manipulated is highly recommended.
The use of a suction device available for blood cell pipets is highly recommended
Select the Correct Answer:
you can recycle clay slabs
Select the Correct Answer:
Dilution of bleach solution
A) 1:10 dilution for porous surfaces.
B) 1:100 dilution for bleach on hard-smooth surfaces may be sufficient
Time of exposure to diluted bleach
1) 500mg/L of solution (1:100) inactivates hepatitis B virus (HBV) in 10 minutes.
2) human immunodeficiency virus (HIV) in 2 minutes
For large spills of infectious agents should be first flooded and mixed with a concentrated disinfectant such as 20% (1:5) dilution bleach, then allowed to stand for 10 minutes before being decontaminated.
