Analyte - Study guides, Class notes & Summaries

The three major phases of laboratory testing that a QA program should evaluate include a. mean, standard deviation, and coefficient of variation. b. pre-op, operative, and post-op. c. pre-analytical, analytical, and post-analytical. d. outpatient, inpatient, and non-patient. - Answer c. pre-analytical, analytical, and post-analytical. The process by which test results achieve the same high levels of accuracy and precision that can be reproduced across measurement systems, laboratories...

Quality Assurance - everything that the laboratory does to assure a high quality service to its users Analytical Specificity - he ability of the assay to discriminate an analyte from a potentially interfering analyte Analytical Sensitivity - smallest amount of analyte a method can distinguish from "zero" analyte with 95% confidence Analytical Bias - a bias resulting from the system, leading on average to systematic errors, in contrast to random errors, which on average cancel each o...

A graphical presentation of run to run or day to day quality control values is a Select one: a. Levey-Jennings chart. b. systematic flow chart. c. westgard chart. d. lawson chart. - correct answer Levey-Jennings chart An abrupt demonstrated change in the mean is a Select one: a. shift. b. trend. c. variance. d. deviation. - correct answer shift Qualitative examinations are those that a. qualify for waived testing. b. produce non-numerical results. c. do not require quality...

The three major phases of laboratory testing that a QA program should evaluate include a. mean, standard deviation, and coefficient of variation. b. pre-op, operative, and post-op. c. pre-analytical, analytical, and post-analytical. d. outpatient, inpatient, and non-patient. correct answersc. pre-analytical, analytical, and post-analytical. The process by which test results achieve the same high levels of accuracy and precision that can be reproduced across measurement systems, laborato...

Pharm 121 laboratory Answer Sheets 2023/2024 (100%Verified) - Saint Louis University. Activity 1.1. Identify the following apparatuses used in the chemistry laboratory. Write your answers on the space provided before each item. _____________________________ a. It is used to hold solids while they are being weighed or to cover a beaker. _____________________________ b. It is convenient for collecting a precipitate directly within the vessel in which it is to be dried then weighed. _________...

CLINICAL CHEMISTRY PART 2 QUESTIONS AND ANSWERS Measures of center - Answer-mean, median, mode The three most commonly used descriptions of the center of a dataset are the mean, the median, and the mode. Measures of spread - Answer-Coefficient of variation, Range, Standard deviation The spread represents the relationship of all the data points to the mean. There are three commonly used descriptions of spread: (1) range (2) standard deviation (SD), and (3) coecient of variation (CV). Sys...

Chem 420 Final Exam Questions And Answers (Verified And Updated) Analog Signals - answermagnitude of voltage, current, charge or power, continuous in both amplitude and time Time-domain signals - answertime relationship of signal fluctuations, frequency pulse width, phase Digital Information - answerdata encoded in discrete levels, a simplification for transmission and storage of info which can be re-combined with accuracy and precision Signal-to-Noise Ratio - answerS/N, the measure of t...

Chem 420 Final Exam Questions And Answers (Verified And Updated) Analog Signals - answermagnitude of voltage, current, charge or power, continuous in both amplitude and time Time-domain signals - answertime relationship of signal fluctuations, frequency pulse width, phase Digital Information - answerdata encoded in discrete levels, a simplification for transmission and storage of info which can be re-combined with accuracy and precision Signal-to-Noise Ratio - answerS/N, the measure of t...

Which of the following would NOT be a typical methodology for a clinical chemistry test? Immunoturbidimetry Microscopy EMIT® ISE correct answersb How should a laboratory verify the reference range it uses for a particular test? Call another laboratory Use the numbers from a textbook Test samples from healthy people Look on a medical internet site correct answersc ESTABLISHING A REFERENCE INTERVAL A new reference interval is established when there is no existing analyte or m...