#1
Which of the following is an example of a common clinical laboratory procedure?
Electrocardiography (ECG)
ExplanationECG is a common clinical laboratory procedure used to record the electrical activity of the heart.
#2
What is the primary purpose of quality control in clinical laboratory procedures?
To ensure accuracy and reliability of results
ExplanationQuality control in clinical laboratory procedures is essential for maintaining the accuracy and reliability of test results.
#3
Which of the following is a pre-analytical phase in clinical laboratory procedures?
Transportation of specimens to the laboratory
ExplanationThe transportation of specimens to the laboratory is a pre-analytical phase in clinical laboratory procedures.
#4
What is the primary purpose of a calibration curve in analytical chemistry?
To establish a relationship between concentration and instrument response
ExplanationA calibration curve in analytical chemistry establishes a relationship between the concentration of a substance and the response of the instrument.
#5
Which of the following is a critical step in ensuring specimen integrity during collection for laboratory testing?
Labeling the specimen container after collection
ExplanationLabeling the specimen container after collection is a critical step in ensuring specimen integrity during laboratory testing.
#6
What is the purpose of centrifugation in clinical laboratory procedures?
To separate components of a mixture based on density
ExplanationCentrifugation in clinical laboratory procedures is used to separate components of a mixture based on their density.
#7
Which of the following organizations sets standards for clinical laboratory testing in the United States?
CLSI (Clinical and Laboratory Standards Institute)
ExplanationCLSI is an organization that establishes standards for clinical laboratory testing in the United States.
#8
What does the acronym 'CLIA' stand for in the context of clinical laboratory procedures?
Clinical Laboratory Improvement Amendments
ExplanationCLIA stands for Clinical Laboratory Improvement Amendments, which are regulations ensuring quality standards in clinical laboratories.
#9
Which of the following is an example of an immunoassay technique used in clinical laboratories?
ELISA (Enzyme-Linked Immunosorbent Assay)
ExplanationELISA is an example of an immunoassay technique used in clinical laboratories for detecting antibodies, antigens, and other substances.
#10
What is the purpose of proficiency testing in clinical laboratories?
To compare laboratory results with those of other laboratories
ExplanationProficiency testing in clinical laboratories is conducted to compare the results of a laboratory with those of other laboratories, ensuring accuracy and reliability.
#11
Which of the following is an example of a waived test according to CLIA regulations?
Urinalysis
ExplanationUrinalysis is an example of a waived test according to CLIA regulations, indicating it has a low risk of error and can be performed with minimal supervision.
#12
What is the primary purpose of standardization in clinical laboratory testing?
To ensure uniformity and accuracy of test results
ExplanationStandardization in clinical laboratory testing is crucial for ensuring uniformity and accuracy of test results.
#13
Which of the following is a characteristic of a proficiency testing program in clinical laboratories?
It involves blind samples sent to laboratories for analysis
ExplanationProficiency testing in clinical laboratories includes the analysis of blind samples to assess laboratory performance.
#14
Which of the following terms refers to the process of separating components in a mixture based on their molecular size?
Chromatography
ExplanationChromatography is a process in analytical chemistry that separates components in a mixture based on their molecular size.
#15
Which of the following is an example of an external quality assessment program for clinical laboratories?
Annual proficiency testing conducted by a regulatory agency
ExplanationAnnual proficiency testing conducted by a regulatory agency is an example of an external quality assessment program for clinical laboratories.
#16
Which of the following factors is essential for ensuring the accuracy of molecular diagnostic tests?
Primer specificity
ExplanationPrimer specificity is essential for ensuring the accuracy of molecular diagnostic tests by targeting specific DNA sequences.
#17
Which of the following is an example of a regulatory agency overseeing clinical laboratory standards in the United States?
CMS (Centers for Medicare & Medicaid Services)
ExplanationCMS is a regulatory agency in the United States overseeing clinical laboratory standards and ensuring compliance with regulations.