Question 1

Which of the following is a hematology point-of-care test (POCT)?

Accepted Answer

All of the options listed, Hemoglobin, Hematocrit, and Erythrocyte Sedimentation Rate, are examples of hematology tests that can be performed at the point of care.

Question 2

To determine the proper maintenance of a Glucometer,the blood collector should:

Accepted Answer

Reading the package insert is essential for understanding the specific maintenance requirements and operating procedures for a glucometer. This document provides detailed instructions directly from the manufacturer, ensuring the device is used and maintained correctly.

Question 3

External controls are required:

Accepted Answer

B

Question 4

A procedure manual differs from a package insert by containing:

Accepted Answer

The answer of A procedure manual differs from a package...

Question 5

According to Clinical Laboratory Improvement Amendments (CLIA),a test that can be purchased over the counter for home use is called:

Accepted Answer

Tests that can be purchased over the counter for home use are classified as waived under CLIA. This means they are considered to be simple tests that carry a low risk of producing inaccurate results and can be performed outside of a laboratory setting by individuals with little to no medical training.

Question 6

One of the main advantages of point-of-care testing (POCT) is:

Accepted Answer

One of the main advantages of POCT is faster turnaround time of test results compared to sending samples to a central laboratory. This can be particularly important in urgent or time-sensitive situations. However, quality control and proper training are still necessary to ensure accurate and reliable results. The dilutional effect on operators is not a relevant factor in POCT.

Question 7

Which of the following statements refers to point-of-care testing (POCT)?

Accepted Answer

All of the statements refer to point-of-care testing (POCT). POCT is performed at the patient's bedside using portable instruments, and in some cases, blood collectors are trained to perform POCT.

Question 8

A blood collector is authorized to perform which of the following tests on urine?

Accepted Answer

A blood collector is typically trained to perform all these tests on urine, including physical, chemical examinations, and pregnancy tests.

Question 9

Prothrombin time (PT)/international normalized ratio (INR),activated partial thromboplastin time (APTT),and the activated clotting time (ACT) are associated with which laboratory department?

Accepted Answer

Prothrombin time (PT)/international normalized ratio (INR), activated partial thromboplastin time (APTT), and the activated clotting time (ACT) are all tests performed within the coagulation laboratory department. Hematology is primarily concerned with the study of blood cells, while chemistry is focused on the measurement of chemical substances in the body. Serology is a branch of immunology that deals with the detection and measurement of antibodies in serum or other bodily fluids.

Question 10

A blood collector performing a test on a standardized sample received from a monitoring agency is performing:

Accepted Answer

Proficiency testing involves testing standardized samples received from a monitoring agency to ensure accuracy and reliability of laboratory results. This is different from quality control, which involves testing known samples alongside patient samples to ensure accuracy within the lab's own processes, and waived testing, which refers to simple laboratory tests that have been approved by regulatory authorities for use outside of traditional laboratory settings. Documentation is also important for tracking and record-keeping, but it is not a specific type of testing.

Question 11

Which phase of laboratory testing involves failure to identify the patient correctly in the point-of-care testing (POCT) device?

Accepted Answer

The preexamination phase includes all activities that occur before the actual laboratory testing, such as patient identification and order entry. Failure to identify the patient correctly in the POCT device would fall under this phase.

Question 12

Manufactured controls with known values are called:

Accepted Answer

Manufactured controls with known values are referred to as external controls. These are used in laboratory testing to ensure that test results are accurate and reliable by comparing them with known standards.

Question 13

During which phase of laboratory testing are critical values addressed?

Accepted Answer

Critical values are addressed during the postexamination phase, which involves result validation, interpretation, and dissemination. During this phase, laboratory personnel review and verify results before communicating them to clinicians and addressing any critical values that may require immediate attention. The preexamination phase involves specimen collection and handling, while the examination phase involves actual analysis of the specimen. The proficiency phase involves assessing the laboratory's performance through quality control and proficiency testing.

Question 14

The Clinical Laboratory Improvement Amendments (CLIA) regulations are administered by:

Accepted Answer

The CLIA regulations are administered by the Centers for Medicare and Medicaid Services (CMS), which has the authority to enforce these regulations and issue certificates of compliance to laboratories that meet CLIA requirements. The other organizations listed may provide laboratory accreditation, but they do not administer CLIA regulations.

Question 15

Two levels of commercial quality control samples are performed to determine:

Accepted Answer

Two levels of commercial quality control samples are performed to ensure the reliability of the test system, proper storage of test materials, and correct performance of the test. Therefore, option D, which includes all of the above, is the best choice.

Question 16

If an operator is not performing a test correctly,this will be detected through:

Accepted Answer

Quality control is the process of monitoring performance to ensure that a test is performing correctly. If an operator is not performing the test correctly, this will be detected through quality control measures. Documentation, calibration, and panic values may also play a role in identifying errors, but quality control is the most comprehensive and systematic approach to identifying performance issues.

Question 17

Point-of-care testing (POCT) is routinely performed in which of the following areas?

Accepted Answer

Point-of-care testing (POCT) can be performed in all of the areas listed. POCT is a form of medical testing in which diagnostic tests are performed at the patient's bedside or in close proximity to where care is provided. This allows for rapid diagnosis and treatment decisions, particularly in critical care settings such as intensive care units and operating rooms, and in primary care settings such as physician's offices.

Question 18

When performing point-of-care testing (POCT),an operator must be sure to document results of:

Accepted Answer

When performing point-of-care testing, it is important to document the results of patient tests, quality control, and electronic controls. This documentation helps ensure accurate patient results and allows for tracing of any potential errors or issues. Therefore, option D (All of the above) is the best choice.

Question 19

Sample collection is part of the:

Accepted Answer

Sample collection is part of the preexamination phase, which involves all activities that occur between the time a laboratory test is requested and the time the specimen is analyzed. This phase also includes patient identification, ordering and labeling of samples, transportation and storage of specimens, and accessioning of samples into the laboratory information system.

Question 20

Proficiency testing is required for which levels of Clinical Laboratory Improvement Amendments (CLIA) complexity?

Accepted Answer

Proficiency testing is required for all levels of CLIA complexity, including provider-performed microscopy procedures (PPMP), moderate complexity, and high complexity. This is to ensure that laboratories are accurately and reliably performing testing on patient samples.

Quiz 7: Point-Of-Care Testing

Which of the following is a hematology point-of-care test (POCT) ?