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Medtech Quizes
| Term | Definition |
|---|---|
| An example of a susceptible host in the chain of infection? | patient with AIDS |
| before a phlebotomist enters the room of a patient in strict isolation the phlebotomist should wear? | gloves, gown, mask |
| if a specimen tube containing patient blood breaks in a centrifuge what is the first thing the phlebotomist should do? | unplug the centrifuge |
| what are the 3 components of radiation safety? | time, shielding and distance |
| the physical transfer of a pathogenic microbe through close contact such as kissing is | direct contact transmission |
| what is the best type of fire extinguisher to use with chemicals? | |
| Brightfield microscope | Objects appear dark against white background. Used for most routine clinical work |
| Darkfield microscope | Objects appear white aginst a black background. Good for live microorganisms |
| Fluorescent microscope | Microscope with two special filters. Excitation filter and emission filter. Objects appear green, yellow, or orange against a black background |
| Phase contrast microscope | Subtle differences in refractive index are converted into clear-cut variations of light intensity and contrast. Good for living cells, unstained specimens. |
| Polarizing microscope | Microscope with two crossing filters. Objects that can refract light appear white against a black background. Good for identification of crystals in urine. |
| function of a condenser | direct and focus the light through the specimen |
| a pipette should be wiped off.. | before lowering the meniscus to the calibration mark |
| most pure chemical grade | reagent or analytical grade (AR) |
| During an Ivy bleeding time procedure, the blood pressure cuff should be positioned | Above the antecubital crease |
| To accept a specimen for trace metal analysis, the specimen should be collected in a | Royal blue tube |
| If a phlebotomist must collect a blood specimen from a patient's arm that has an IV, the phlebotomist should draw from | below IV |
| What special handling, if any, is required for bilirubin specimens? | protect from light |
| The color-coded tube that is most often associated with hematology (CBC) is | lavender |
| A specimen for glucose analysis is collected in an evacuated tube with a red stopper. The specimen was not processed in a timely fashiion. As a result, the serum glucose values | decrease |
| All of the following anticoagulants inhibit the clotting process by binding calcium except: | Sodium Heparin |
| The specimen for fibrin degradation products (FDP) is collected in: | Tube containing an enzyme inhibitor and thrombin |
| Which of the following evacuated tube stoppers is manufactured with the lowest verified levels of trace elements available | royal blue |
| Arterial blood gas specimens require special transport to prevent changes in: | pH levels |
| yellow-stoppered tubes are used for | blood cultures |
| The liberation of hemoglobin into the plasma following destruction of red blood cells is called | hemolysis |
| Why must the first drop of blood from a capillary puncture be wiped away? | To remove tissue fluid contamination |
| The mathematical expression of the angle of light which regulates a balance between contrast and resolution is referred to as | numerical aperature |
| Iris diaphragm | Located in the condenser. Controls the amount of light entering through opening in the stage. |
| Under Universal precautions, all needles are to be disposed of in the following manner: | discarded intact |
| If when viewing a specimen after adjusting the light, cleaning the objectives and oculars, performing the Kohler illumination and course and fine focus, the specimen never seems to quite be in focus the most probable cause is | the specimen slide is upside down |
| Airborne precautions may be required for patients with infections such as | tuberculoisis |
| The ability of a set of lenses to distinguish fine details of two closely situated objects is known as | resolution |
| Which of the following is associated with proper storage of chemicals? | Volatile solvents should be stored in small amounts in an explosion-proof cabinet. |
| The electron microscope that produces a 3-D image of an object by focusing electrons emitted from the surface of the object onto a photographic plate is the | scanning electron microscope |
| Transfer of a pathogenic microbe by contaminated food or drug is: | vehicle transmission |
| Class C fires are | electrical fires |
| Which of the following 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 |
| If a technician performing a routine brightfield microscopic analysis on an unstained urine sediment is to have sufficient contrast and resolution to identify important elements, the microscope must be adjusted by | Lowering the condenser and/or reducing the light |
Created by:
aoyler