QA & QC
The extent to which measurements agree with the true value.
What is accuracy?
An infection acquired during a hospital stay.
What is a nosocomial infection?
Downward curve at the surface of the liquid in a pipette.
What is a meniscus?
The concentration of a substance is directly proportional to the amount of light absorbed.
What is Beer's Law?
Standard deviation expressed as a percentage of the mean.
What is the coefficient of variation?
The reliability of a test to be positive in the presence of disease.
What is sensitivity?
Class of fire that occurs with combustible or reactive materials.
What is a class D fire?
The objective that has the shortest working distance.
Wat is a 100x objective?
Measures the light scatter of macromoleule complexes.
What is Nephelometry?
The previous dilution to the one without a signal (negative).
What is end-point titer?
When there are greater than six consecutive vales that progressively increase or decrease on a Levey-Jennings chart.
What is a trend?
Biosafety level most often seen in clinical labs.
What is BSL-2?
The most accurate type of balance.
What is an analytical balance?
Uses antibody labeled with fluorescein.
What is immunofluoresscence?
The number of moles of solute per liter of solution.
What is Molarity?
A material with a known range of values, similar to sample matrix.
What is a control?
The agency that oversees employee health and requires vaccinations for workers at risk.
What is OSHA?
The microscope that absorbs light of one wavelength and transmits light at another wavelength.
What is a fluorescence microscope?
A molecular cytogenetic technique using fluorescence.
What is FISH?
The number of dissolved particles in a solution.
What is osmolality?
Contains an exact known amount of substance and is extremely pure.
What is a primary standard?
Requires that clinical testing be divided by complexity and performed only by certified individuals.
What is CLIA '88?
Comparison of a patient result with a previous result for that same patient.
What is a delta check?
Uses a heat stable polymerase, dNTPs, and specific primers.
What is PCR?
The formula for calculating a change in concentration.
C1 X V1=C2 X V2