Chapter 1. Introduction to Hematology and Basic Laboratory Practice
Multiple Choice
1. Tube length when referring to the microscope is the: A. Resolution power of the objective B. Distance from the eyepiece to the objective C. Numerical aperture D. Magnitude of the image on the stage ANS: B OBJ: 1.3
2. What is the most useful corrective action for the microscope when fine details cannot be visualized in immature cells? A. Open up the diaphragm for maximum light. B. Wipe off lenses with lens cleaner. C. Get a new slide. D. Move to a lower power. ANS: A OBJ: 1.4
3. Which of the following behaviors is a violation of standard precautions? A. Hand washing after glove removal B. Use of impermeable laboratory gowns C. Use of goggles and face shields D. Placing laboratory notebooks on laboratory work area ANS: D OBJ: 1.5
4. Standards and calibrators differ from control materials because: A. An exact amount of analyte is present in a standard or calibrator B. A variable amount of analyte is present depending on patient samples C. Standards only need to be within a target range Copyright © 2019 by F. A. Davis Company