Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/25

Click to flip

25 Cards in this Set

  • Front
  • Back
The function of a hematology laboratory are:
1. Confirm physicians impression of a possible hematological disorder.
2. Establish or rule out a diagnosis.
3. Screen for asymptomatic disorders.
The major intended purpose of the laboratory safety manual is to:
Protect the patient and laboratory personnel.
Which of the following is not an appropriate safety practice?
*Disposing of needles in a biohazard, puncture proof container.
*Frequent handwashing
*sterilzing lancets for re-use.
*keeping food out of the same area as specimens.
*sterilzing lancets for re-use.
If a blood specimen is spilled on a lab bench or floor, the first step in clean up should be.....
1. absorb all visible blood with disposable towel
The most basic and effective procedure in preventing nosocomial infections is....
Handwashing between patient contact.
The likeihood of infection after exposure ot HBV-infected or HIV infected blood or body fluids depends on all of the follwing factors except the:
A)Source (anatomical site) of blood or fluid
b)concentration of the virus
c)duration of the contact
d)presence of nonintact skin
Source (anatomical site) of blood or fluid
HBV and HIV may be directly transmitted in the occupational setting by all the following except:
a)parenteral inoculation with contaminated blood.
b)Exposure of intact skin to contaminated blood or certain body fluids.
c)Exposure of intact mucous membranes to contaminated blood or certain body fluids.
d)Sharing bathroom facilities with an HIV positive person.
d)Sharing bathroom facilities with an HIV positive person.
Standard precaution have been instituted in clinical labs to prevent _____ exposures of healthcare workers to bloodborne pathogens such as HIV and hepatitis B virus.
All the following-
Parenteral
NON-intact mucous membrane
NON-intact skin
Exposure to ______ constitures the major source of HIV and HBV infection in healthcare personnel.
BLOOD
The transmission of Hepatitis B is more probable than transmission of HIV.
Gloves for medical use may be sterile or nonsterile and latex or vinyl.
The value is known in a specimen similar to a patient's whole blood or serum is
Control
Closeness to the true value is
Accuracy
Comparison to a known physical constant is
Calibration
How close the test results are when repeated is called
Precision
A purified substance of a known composition is
Standard
The process of monitoring accuracy and reproducibility of known control results is called
Quality control
The difference between the upper and lower measurements in a series of results is called ...
Range
The expression of the position of each test result to the average is called ...
Standard Deviation
The arithmetic average is called the....
Mean
The degree to which test data vary about the average is called the ....
Variance
The z score measures what?
The z score measures how many standard deviations of a particular number is from the right or left of the mean.
Acceptable limits of a control value must fall
within +/- 2 standard deviations of the mean.
A trend change in quality control data is ....
a progressive change in one direction away from teh mean for at least 3 days.
A continuously increasing downward variation in a control sample in one direction from teh mean can indicate....
1) deterioration of reagents used in the test.
2)deterioration of the control specimen.
3) deterioriation of the component in an instrument.
A Gaussian curve represents a normal bell shaped distribution.
Two standard deviations (2SD) from the mean in a normal distribution curve would include 95% of all values.