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MEDT 132 Final
Final Exam Material
| Question | Answer |
|---|---|
| A form provided by chemical manufacturers containing general information, safe handling, and emergency information regarding a particular chemical is called a(n)? | material safety data sheet |
| The term blood-borne pathogens most commonly refers to: | HBV and HIV |
| Which procedure is most basic and effective in preventing the spread of infectious diseases in the hospital environment? | Washing hands between each patient contact |
| The three components of the chain of infection are: | source, mode of transmission, susceptible host |
| What is the best type of fire extinguisher to use with chemicals? | ABC |
| Chemical compounds used to remove or kill microorganisms on work surfaces or instruments are called: | Disinfectants |
| Which isolation systems, established by the CDC is based on a diagnosis of a communicable disease, and includes a category titled "AFB isolation"? | category specific isolation |
| An infection control program that includes monitoring specific patient population groups and classification of infection is called: | surveillance |
| Microscope with objects appear dark against white background. Used for most routine clinical work. | Brightfield microscope |
| Microscope with Objects appear white aginst a black background. Good for live microorganisms. | Darkfield microscope |
| Microscope with two special filters. Excitation filter and emission filter. Objects appear green, yellow, or orange against a black background | Fluorescent microscope |
| Microscope with subtle differences in refractive index are converted into clear-cut variations of light intensity and contrast. Good for living cells, unstained specimens. | Phase contrast microscope |
| Microscope with two crossing filters. Objects that can refract light appear white against a black background. Good for identification of crystals in urine. | Polarizing microscope |
| The total magnification of a microscope is determined by both the power of the objective and the | Objective |
| Eyepiece on the left. Adjusted to correct the focus for the individual's visual acuity | Adjustable ocular |
| Eyepiece for right eye. Adjusted for focus first. | Stationary ocular |
| Mathematical expression of light admitted by lens. | Numerical aperture |
| Object in the center of a field at one magnification remains in the center of the field at other magnifications | Parcentric |
| Ability to reveal fine detail and distinguish between two close points. | Resolution |
| Distance between the slide and the objective. | working distance |
| What part of the microscope enables workers to quickly locate the same blood cell again on slides that have been removed and replaced on the microscope stage? | Mechanical stage |
| The function of a condenser on a microscope is to | Direct and focus the light through the specimen |
| The part of the microscope that controls the intensity of light from the lamp is the | Rheostat |
| Extra care must be taken in focusing the 100X objective because it has a | short working distance |
| T/F: Type I reagent grade water is required for all laboratory procedures. | False |
| The term used to denote specific procedures within a program designed to ensure quality patient care is: | quality control |
| The federal law that requuires all labs to meet acceptable standards of accuracy in test results is | CLIA 1988 |
| If a phlebotomist forcibly collects a blood specimen from a patient after the patient has refused the test, the phlebotomist can be charged with: | Battery |
| If a patient is not in his or her room, how should the phlebotomis locate the patient? | Ask at the nurse's station |
| During an Ivy bleeding time procedure, the blood pressure cuff should be positioned: | Above the antecubital crease |
| The specimen for fibrin degradation products (FDP) is collected in: | A red-stoppered tube |
| Blue-stoppered tubes are used primarily for the following assay: | Prothrombin Time |
| When performing a venipuncture it is important to remove the tube from the needle before removing the needle from the patient s arm in order to: | Prevent blood from dripping from the needle |
| What effect will dislodging the platelet plug have on the bleeding time results? | Falsely elevated |
| The coefficient of variation is the | Standard deviation expressed as a percentage of the mean |
| The term that means reproducibility among repeat determinations of a sample is: | Precision |
| In a normal distribution of results, the mean value +/- 2 standard deviations will exclude: | 5% of the population |
| Instructions that tell the computer hardware to do specific functions | Program |
| The physical or "hard" parts of the computer. | Hardware |
| Instructions directing the computer hardware to do specific functions. | Software |
| Program allowing two computers to interchange data electronically. | Interface |
| Organization of the data in the computer | Database |
| Comparison of a patient result with a previous result for that same patient. | Delta Check |
| Electronic portion of a computer. Controls and performs the execution of programs or instructions | CPU |
| Working memory used for temporary storage of programs and data. | RAM |
| Memory in computer permanently protected from being modified. Used for boot-level and other system instructions | ROM |
| Magnetic-coated device/plate inside the CPU for storing data | Hard drive |
| Computer components in laboratory providing patient information, test information, work lists, test results | LIS |
| Computer network that connects computers and their equipment in close geographic proximity | LAN |
| When test results are beyond the upper or lower limits of the accepted range, the test is | Out of control |
| When there are five or six consecutive values that continue to increase or decrease on a Levey-Jennings chart, it is called a | trend |
| The most frequent value in a collection of data is statistically known at the: | Mode |
| The value in a sample that is the middle one of all the values is the | median |
| About 99 percent of control-test results fall within +/- 2 standard deviations. | FALSE |
| The term that means reproducibility among repeat determinations of a sample is: | precision |
| In a normal distribution of results, the mean value +/- 3 standard deviations will exclude: | 1% of the population |
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