Intro to QC Flashcards
examining “control” materials of known substances along with patient samples to monitor the accuracy and precision of the complete examination (analytic) process.
Quality Control
Purpose of QC
to detect errors and correct them before patients’ results are reported
Measure the quantity of a
particular substance in a sample
Quantitative Examinations
Measurements should be both accurate and precise
Quantitative Examinations
Examinations that do not have numerical results
Qualitative Examination
Results are expressed as an estimate of the measured substance:
Semi-quantitative Examination
results is not in numbers, example is microscopic, tests under serology
Qualitative Examination
Half-Qualitative Half Quantitative
Not exact value
Ex: urine dipstick, microscopic examinations (urinalysis)
Semi-quantitative Examination
goal is to identify errors and eliminate them before reporting patient results
Quality Control