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
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
an absolute necessity in all laboratories to prevent skin contamination with infectious agents or damage from hazardous chemicals
kind of gloves that is commonly used in non-hazardous and low-infection environments.
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.
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.
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
Contaminated gloves can still be use again after and before proceeding to do work
Contaminated gloves should be disposed of properly and be replaced with a clean pair before proceeding to do work
Hand washing facilities should be separate from the ones used for washing equipment or for waste disposal
Use of hand towelettes and cleaning foam are always recommended
Use of hand towelettes and cleaning foam are not recommended except field conditions where water is not readily available
duration of handwashing
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
you can recycle clay slabs
As the clay slabs often become contaminated with blood, therefore they should be treated as biohazardous and should not be recycled.(i.e. re-formed to extend their life) Further more, they should be replaced at appropriate intervals.
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.
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 20 minutes before being decontaminated.