Chapter 1: Introduction to Hematology and Basic Laboratory Practice

Multiple Choice

Identify the choice that best completes the statement or answers the question.

____    ;  Tube length when referring to the microscope is the:

____    ;  What is the most useful corrective action for the microscope when fine details cannot be visualized in immature cells?

____    ;  Which of the following behaviors is a violation of standard precautions?

____    ;  Standards and calibrators differ from control materials because:

____    ;  If the confidence interval for most laboratories is , what is the acceptable range for hemoglobin if a hemoglobin control was run with a mean of and a standard deviation of 

____    ;  Proper mixing of samples and timely delivery of samples to the laboratory are both examples of:

____    ;  A delta check is a historical reference on samples run in the laboratories. Once a sample fails a delta check, the most obvious corrective action is to:

____    ;  Which of the following is the definition of a reference interval?

____    ;  Which of the following is not considered a postanalytic variable?

____  ;  Error analysis, standard protocols, and turnaround time are all part of the:

____  ;  The average of a group of data points is defined as the:

____  ;  Safety training is part of new employee training in health care and includes:

____  ;  Control materials are:

____  ;  Delta checks are used in the hematology laboratory to:

____  ;  When handwashing after a patient contact, the soap application process should last at least:

____  ;  Which of the following represents an example of a safety violation in the laboratory?

True/False

Indicate whether the statement is true or false.

____  ;  Standard deviation is a measurement of precision.

____  ;  Accuracy is a measurement of the true value of an analyte.

____  ;  A normal distribution curve will have of the measured values fall within 2 SDs.

Short Answer

          ;  Label the parts of the microscope.