Hem Lec Ch1

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Author:
CTEPBA
ID:
294270
Filename:
Hem Lec Ch1
Updated:
2015-02-19 00:40:26
Tags:
safety quality Hem lab
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Description:
safety and quality in Hem lab
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  1. OSHA stands for?
    Occupational safety and Health Administration act and Standards.
  2. CHP stands for?
    Chemical hygiene plan
  3. The most important source of HBV and HIV is?
    blood
  4. Viral concentration is higher for 1._____ then 2.____.
    • 1. HBV 
    • 2. HIV
  5. The function ( or functions) of a hematology laboratory is (are) to ?
    • Confirm physician's impression of a possible hematological disorders
    • establish or rule out a diagnosis
    • screen for asymptomatic disorders.
  6. The major untended purpose of the laboratory safety manual is to?
    protect the patient and laboratory personal
  7. which of the following is NOT as appropriate safety practice?
    Sterilizing lancets for reuse.
  8. IF the blood is spilled on a laboratory bench or floor area, the first step in cleanup should be?
    absorb blood with disposable towels.
  9. which of the following procedures is the most basic and effective in preventing nosocomial infections ?
    washing hands between patients contacts.
  10. The likelihood of infection after exposure to HBV-infected or HIV-infected blood or body fluids depends on what following factors?
    • Concentration of the virus
    • Duration of the contact
    • presence of non intact skin
  11. HBV and HIV may be directly transmuted in the occupational setting by ?
    • parental inoculation with contaminated blood
    • exposure of intact skin to contaminated blood of certain body fluids
    • exposure of intact mucus membrane to contaminated blood or certain body fluids.
  12. Standard precautions have been instituted in clinical laboratories to prevent __________ exposure of healthcare workers to bloodborn pathogens such as HIV and HBV
    • parental
    • nonintact mucous membrane
    • nonintact skin
  13. Exposure to  __________ constitutes the major source of HIV and HBV infection in health personnel?
    blood
  14. The transmission of HBV is ________ probable than transmission of HIV
    More
  15. the transmission of HIV is ___________ probable than transmission of HBV
    less
  16. In what laboratory situation is a verbal report permissible?
    When emergency test results are needed by a physician
  17. Accuracy is?
    closeness to a true value
  18. Comparison to a known physical constant is
    Calibration
  19. The value is known in a specimen similar to a patients whole blood or serum
    Control
  20. how close test results are when repeated is?
    Presicion
  21. A purified substance of a known composition is?
    Standards
  22. The process of monitoring accuracy and reproducibility of known control results is?
    quality
  23. The arithmetic average is ?
    Mean
  24. The difference between the upper and lower measurements in a  series of results is known as?
    Range
  25. The degree to which the data vary about the average is known as?
    Variance
  26. the expression of position of each  test result to the average is known as ?
    Standard diviation
  27. Acceptable limits of control value must fall within ?
    +/- 2 standard deviations of the mean
  28. The progressive change all in one direction away from the mean for at least 3 days is known as?
    trend change in QC data
  29. A continuously increasing downward variations in a control sample in one direction from the mean can indicate
    • - deterioration of reagents used in the test 
    • - deterioration of the control specimen
    • - deterioration of the component in an instrument
  30. which is true of a Gaussian curve?
    it represents a normal bell shaped distribution.
  31. Two standard deviations (2SD) from the mean in a normal distribution curve would include?
    95% of all values

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