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Clin Lab Proced.03
Homework Packet #3
| Question | Answer |
|---|---|
| In the laboratory, _______________ is a program in which the total testing process is monitored to ensure quality. | QA - Quality Assessment/Assurance |
| A chemical solution of a known concentration that can be used as a reference or calibration substance is a _______________. | Standard |
| How close a determined value is to the _______________ value is expressed by the accuracy. | True |
| A _______________ chart is the name of the quality control chart used to record daily quality control values. | Levey-Jennings |
| The term that expresses the closeness of obtained values to each other is _______________. | Precision |
| A _______________ is an abrupt change in one direction from the established mean. | Shift |
| The _______________ is the sum of a set of values divided by the number of values. | Average/Mean |
| The process of checking, standardizing, or adjusting a method or instrument so that it yields accurate results is called _______________. | Calibration |
| The _______________ is a measure of the spread of population of values around the mean. | SD - Standard Deviation |
| A _______________ is a liquid, solid, or gas dissolved in a liquid to make up a solution. | Solute |
| Laboratory containers that are _______________ are used to make critical measurements. | Volumetric |
| A liquid in which substances can be dissolved is a _______________. | Solvent |
| A(n) _______________ flask is used to make noncritical measurements. | Erlenmeyer |
| _______________ is a plastic that can be heat sterilized. | Polypropylene |
| A wide-mouthed, straight-sided container with a pouring spout formed from the rim is called a _______________. | Beaker |
| _______________ glass is an inexpensive type of glass with low resistance to heat and chemicals. | Flint |
| A _______________ is a slender tube made of glass or plastic that is used in the laboratory for measuring and transferring liquids. | Pipet |
| A pipet that holds or measures less than one mL (<1 mL) is called a _______________. | Micropipet |
| A nonreactive glass with a high thermal resistance that is commonly used to make high quality labware is _______________. | Borosilicate glass |
| A(n) _______________ is a device that uses pressurized steam for sterilization. | Autoclave |
| Water that has had most of the mineral ions removed is _______________. | Deionized water |
| The _______________ is the part of a centrifuge that holds the tubes and rotates during the operation of the centrifuge. | Rotor |
| The name given to centrifuge models that can be used for serum separation or spinning urine samples is the _______________ centrifuge. | Clinical |
| For maximum safety during centrifugation, tubes should remain capped to avoid the formation of _______________. | Aerosols |
| Spores of the bacterium Bacillus Stearothermophilus contained on indicator strips is used to check the effectiveness of an _______________. | Autoclave |
| For safety, an autoclave door must never be opened unless the chamber is at _______________ pressure. | Zero (0) |
| A microscope having two oculars or eyepieces is _______________. | Binocular |
| The magnifying lens closest to the objective being viewed with a microscope is the _______________. | Objective |
| A microscope is said to be _______________ if it has objectives that can be interchanged without varying the instrument's focus. | Parfocal |
| The _______________ is the platform on the microscope that holds the object to be viewed. | Stage |
| The apparatus located below the microscope stage that directs light into the objective is the _______________. | Condenser |
| The _______________ is the distance between the microscope objectives and the microscope slide when the object is in sharp focus. | Working distance |
| The revolving unit called the _______________ is the unit on the microscope to which the objectives are attached. | Nosepiece |
| Kohler illumination adjustments are performed using the _______________ on the microscope. | Field Diaphragm |
| The special nonabrasive paper that is used to clean microscope objectives is called _______________. | Lens paper |
| CONTROL(S) | Solutions usually made from human serum and with a known concentration of the same constituents as those being measured in the patient sample. |
| BINOCULAR | Having two oculars or eyepieces. |
| DEIONIZED WATER | Water that has had most of the mineral ions removed. |
| CRITICAL MEASUREMENTS | Measurements made when the accuracy of the concentration of a solution is important. |
| SOLVENT | A dissolving agent, usually a liquid. |
| PARFOCAL | Having objectives that can be interchanged without varying the instrument's focus. |
| DISTILLED WATER | The condensate collected from steam after water has been boiled. |
| MENISCUS | The curved upper surface of a liquid in a container. |
| NONCRITICAL MEASUREMENTS | Estimated measurements, measurements made in containers that estimate volume. |
| EYEPIECE | The ocular of a microscope. |
| ROTOR | The part of a centrifuge that holds the tubes and rotates during the operation of the centrifuge. |
| REAGENT | Substance or solution used in laboratory analyses; substance involved in chemical reaction. |
| ELECTRON MICROSCOPE | A microscope that uses an electron beam to create images from a specimen and that is capable of much greater magnification than a light microscope. |
| pH | A measurement of the hydrogen ion concentration expressing the degree of acidity or alkalinity of a solution. |
| QC - QUALITY CONTROL | A system that verifies the reliability of analytical test results through the use of standards, controls, and statistical analysis. |
| FINE ADJUSTMENT | Control that adjusts position of microscope objectives and is used to sharpen focus. |
| SOLUTE | The substance dissolved in a given solution. |
| MONOCULAR | Having one ocular or eyepiece. |
| TREND | An indication of error in the analysis, detected by increasing or decreasing values in the control sample. |
| OBJECTIVE | Magnifying lens closest to the object being viewed with a microscope. |
| NOSEPIECE | Revolving unit to which the microscope objectives are attached. |
| COARSE ADJUSTMENT | Control that adjusts position of microscope objectives and is used to initially bring objects into focus. |
| MICROFUGE | A centrifuge that spins small tubes at high rates of speed. |
| WESTGARD'S RULES | A set of rules used to determine when a method is out of control. |
Created by:
luparl
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