Question 1

Quality control is designed to:

Accepted Answer

A) ensure the medical reliability of laboratory data. 
B) check media. 
C) check reagents. 
D) monitor incubator and refrigerator temperatures. 
A) ensure the medical reliability of laboratory data. 
B) check media. 
C) check reagents. 
D) monitor incubator and refrigerator temperatures. A

Question 2

Which of the following is an example of a mission statement for an institution?

Accepted Answer

A) "The AFMS Flagship-Comprehensive Healthcare…On Time…On Target" 
B) "Working Together for a Healthy America" 
C) "Your Total eLearning Solution" 
D) "Will Answer Questions Correctly 95% of the Time" 
A) "The AFMS Flagship-Comprehensive Healthcare…On Time…On Target" 
B) "Working Together for a Healthy America" 
C) "Your Total eLearning Solution" 
D) "Will Answer Questions Correctly 95% of the Time" B

Question 3

All of the following provide guidelines to ensure the continual correct performance of tests except:

Accepted Answer

A) accrediting agencies. 
B) regulatory agencies. 
C) Centers for Disease Control and Prevention (CD
C) . 
D) manufacturers. 
A) accrediting agencies. 
B) regulatory agencies. 
C) Centers for Disease Control and Prevention (CD
C) . 
D) manufacturers. C

Question 4

Antimicrobial susceptibility is hard to control because many of the same species of organisms have a varied susceptibility to particular antibiotics.To reduce this variation, Clinical and Laboratory Standards Institute (CLSI) guidelines recommend:

Accepted Answer

A) using in-house organisms isolated from past patients. 
B) sharing strains between hospital laboratories. 
C) using specific strains from American Type Culture Collection (ATC
C) . 
D) obtaining test strains from Centers for Disease Control and Prevention (CD
C) . 
A) using in-house organisms isolated from past patients. 
B) sharing strains between hospital laboratories. 
C) using specific strains from American Type Culture Collection (ATC
C) . 
D) obtaining test strains from Centers for Disease Control and Prevention (CD
C) .

Question 5

The morning technician arrives at the microbiology laboratory and goes around checking daily temperatures.This person will check temperatures daily on all of the following equipment except:

Accepted Answer

A) centrifuges. 
B) incubators. 
C) heating blocks. 
D) refrigerators. 
A) centrifuges. 
B) incubators. 
C) heating blocks. 
D) refrigerators.

Question 6

A test is performed on a group of 10 patients.Six patients have a disease, and four are free of the disease.If six patients (all known to have the disease) of this group test positive for the disease, we say that the clinical sensitivity of this test is:

Accepted Answer

A) 60%. 
B) 40%. 
C) 50%. 
D) 100%. 
A) 60%. 
B) 40%. 
C) 50%. 
D) 100%.

Question 7

Popular media choices for maintaining stock cultures include:

Accepted Answer

A) TSA deeps. 
B) cornmeal. 
C) Sabouraud dextrose. 
D) CTA with glucose. 
A) TSA deeps. 
B) cornmeal. 
C) Sabouraud dextrose. 
D) CTA with glucose.

Question 8

Screening is:

Accepted Answer

A) used for only particular test analytes. 
B) not practical in a hospital laboratory. 
C) used for testing large populations of patients. 
D) when a high incidence of a disease is found in a population. 
A) used for only particular test analytes. 
B) not practical in a hospital laboratory. 
C) used for testing large populations of patients. 
D) when a high incidence of a disease is found in a population.

Question 9

Customers of a laboratory include all the following except:

Accepted Answer

A) patients. 
B) insurers. 
C) doctors. 
D) accrediting organizations. 
A) patients. 
B) insurers. 
C) doctors. 
D) accrediting organizations.

Question 10

The efficiency of a test indicates:

Accepted Answer

A) the percentage of patients who test positive for the disease. 
B) the percentage of patients who are correctly identified as having or not having the disease. 
C) the percentage of patients who test negative for the disease. 
D) the number of patients tested for a disease. 
A) the percentage of patients who test positive for the disease. 
B) the percentage of patients who are correctly identified as having or not having the disease. 
C) the percentage of patients who test negative for the disease. 
D) the number of patients tested for a disease.

Question 11

All the following are components of The Joint Commission recommendations for establishing performance monitors except:

Accepted Answer

A) plan. 
B) design. 
C) do. 
D) assess. 
A) plan. 
B) design. 
C) do. 
D) assess.

Question 12

When performing tests in the microbiology laboratory, the detection limit of a test refers to the _____ of that test.

Accepted Answer

A) analytic specificity 
B) analytic sensitivity 
C) clinical sensitivity 
D) clinical specificity 
A) analytic specificity 
B) analytic sensitivity 
C) clinical sensitivity 
D) clinical specificity

Question 13

Susceptibility testing of control organisms is usually conducted daily until precision can be demonstrated with _____ or _____ _____ days of susceptibility testing using CLSI guidelines.

Accepted Answer

A) 20; 30; consecutive 
B) 15; 20; consecutive 
C) 30; 40; nonconsecutive 
D) 5; 10; consistent 
A) 20; 30; consecutive 
B) 15; 20; consecutive 
C) 30; 40; nonconsecutive 
D) 5; 10; consistent

Question 14

Media that do not need to be retested by the hospital laboratory must still undergo observation for all of the following except:

Accepted Answer

A) moisture. 
B) sterility. 
C) breakage. 
D) organism colony characteristics. 
A) moisture. 
B) sterility. 
C) breakage. 
D) organism colony characteristics.

Question 15

All of the following activities are included in a laboratory quality control program except:

Accepted Answer

A) air quality. 
B) temperatures. 
C) media. 
D) antimicrobial susceptibility testing. 
A) air quality. 
B) temperatures. 
C) media. 
D) antimicrobial susceptibility testing.

Question 16

A technician is performing a chemistry test on a control sample.The technician gets the following values for the control: 4.3, 4.3, 4.3, 4.2, 4.4, 4.3, 4.2, and 4.4.The actual value is 4.3.These results are said to be:

Accepted Answer

A) systematically inaccurate. 
B) sensitive. 
C) accurate. 
D) bias. 
A) systematically inaccurate. 
B) sensitive. 
C) accurate. 
D) bias.

Question 17

A broken process is fixed when:

Accepted Answer

A) the problem is prevented from happening again. 
B) everyone is happy with the process. 
C) the process becomes seamless. 
D) the hospital administrator determines that the cross-functional team is no longer needed. 
A) the problem is prevented from happening again. 
B) everyone is happy with the process. 
C) the process becomes seamless. 
D) the hospital administrator determines that the cross-functional team is no longer needed.

Question 18

All of the following activities will directly affect the quality of a laboratory test except:

Accepted Answer

A) preanalytic. 
B) analytic. 
C) accreditation. 
D) postanalytic. 
A) preanalytic. 
B) analytic. 
C) accreditation. 
D) postanalytic.

Question 19

A test can have both a positive and negative predictive value.All the following elements are needed to compute the positive and negative predictive value of a test except:

Accepted Answer

A) sensitivity of a test. 
B) specificity of a test. 
C) type of disease being tested. 
D) prevalence of the disease being tested. 
A) sensitivity of a test. 
B) specificity of a test. 
C) type of disease being tested. 
D) prevalence of the disease being tested.

Question 20

Reagents that should undergo quality control in the microbiology laboratory include all the following except:

Accepted Answer

A) optochin. 
B) immersion oil. 
C) b-lactamase. 
D) nitrate. 
A) optochin. 
B) immersion oil. 
C) b-lactamase. 
D) nitrate.

Exam 5: Performance Improvement in the Microbiology Laboratory

Quality control is designed to:

Which of the following is an example of a mission statement for an institution?

All of the following provide guidelines to ensure the continual correct performance of tests except:

Antimicrobial susceptibility is hard to control because many of the same species of organisms have a varied susceptibility to particular antibiotics.To reduce this variation, Clinical and Laboratory Standards Institute (CLSI) guidelines recommend:

The morning technician arrives at the microbiology laboratory and goes around checking daily temperatures.This person will check temperatures daily on all of the following equipment except:

A test is performed on a group of 10 patients.Six patients have a disease, and four are free of the disease.If six patients (all known to have the disease) of this group test positive for the disease, we say that the clinical sensitivity of this test is:

Popular media choices for maintaining stock cultures include:

Screening is:

Customers of a laboratory include all the following except:

The efficiency of a test indicates:

All the following are components of The Joint Commission recommendations for establishing performance monitors except:

When performing tests in the microbiology laboratory, the detection limit of a test refers to the _____ of that test.

Susceptibility testing of control organisms is usually conducted daily until precision can be demonstrated with _____ or _____ _____ days of susceptibility testing using CLSI guidelines.

Media that do not need to be retested by the hospital laboratory must still undergo observation for all of the following except:

All of the following activities are included in a laboratory quality control program except:

A technician is performing a chemistry test on a control sample.The technician gets the following values for the control: 4.3, 4.3, 4.3, 4.2, 4.4, 4.3, 4.2, and 4.4.The actual value is 4.3.These results are said to be:

A broken process is fixed when:

All of the following activities will directly affect the quality of a laboratory test except:

A test can have both a positive and negative predictive value.All the following elements are needed to compute the positive and negative predictive value of a test except:

Reagents that should undergo quality control in the microbiology laboratory include all the following except:

Bacterial Cell Structure, Physiology, Metabolism, and Genetics

Host-Parasite Interaction

The Laboratory Role in Infection Control

Control of Microorganisms

Specimen Collection and Processing

Microscopic Examination of Materials From Infected Sites

Use of Colony Morphology for the Presumptive Identification of Microorganisms

Biochemical Identification of Gram-Negative Bacteria

Immunodiagnosis of Infectious Diseases

Applications of Molecular Diagnostics

Antimicrobial Agent Mechanisms of Action and Resistance

Antimicrobial Susceptibility Testing

Staphylococci

Streptococcus, Enterococcus, and Other Catalase-Negative, Gram-Positive Cocci

Aerobic Gram-Positive Bacilli

Neisseria Species and Moraxella Catarrhalis

Haemophilus and Other Fastidious Gram-Negative Bacilli

Enterobacteriaceae

Vibrio, Aeromonas, Plesiomonas, and Campylobacter Species

Nonfermenting and Miscellaneous Gram-Negative Bacilli

Anaerobes of Clinical Importance

The Spirochetes

Chlamydia, Rickettsia and Similar Organisms

Mycoplasma and Ureaplasma

Mycobacterium Tuberculosis and Nontuberculous Mycobacteria

Medically Significant Fungi

Diagnostic Parasitology

Clinical Virology

Agents of Bioterror and Forensic Microbiology

Biofilms: Architects of Disease

Upper and Lower Respiratory Tract Infections

Skin and Soft Tissue Infections

Gastrointestinal Infections and Food Poisoning

Infections of the Central Nervous System

Bacteremia and Sepsis

Urinary Tract Infections

Genital Infections and Sexually Transmitted Diseases

Infections in Special Populations

Zoonotic Diseases

Ocular Infections

Filters

Susceptibility testing of control organisms is usually conducted daily until precision can be demonstrated with ___ or _ ___ days of susceptibility testing using CLSI guidelines.