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Con Ch 19
Specimen Collection and Diagnostic Examination
Question | Answer |
---|---|
culture | lab test involving cultivation of microorganisms or cells in a special growth medium |
cytology | the study of cells including their formation, origin, structure, function, biochemical activities, and pathology |
electrocardiogram (ECG) | Sometimes called EKG, a graphic representation of electrical impulses generated by the heart during a cardiac cycle; identifies abnormalities that interfere with electrical conduction thru cardiac tissue |
expectorate | eject mucus, sputum, or fluids from the trachea and lungs by coughing or spitting |
fixative | any substance used to preserve gross or histologic specimens of tissue for later examination |
Hemocult | test that detects occult (hidden) blood in the feces |
midstream urine specimen | urine collected after voiding is initiated (midstream) and before voiding is completed; cleanest part of the voided specimen |
occult | hidden |
residual urine | urine left in the bladder after voiding |
sensitivity | laboratory method of determining effectiveness of antibiotics, usually performed in conjunction with culture |
specimen | a small sample of something, intended to show the nature of the whole |
tourniquet | constricting device applied to control bleeding; applied above the bleeding site to prevent blood flow to the part below the tourniquet and prevent venous blood from returning to the heart |
Venipuncture | the most common method of drawing a blood sample, involves inserting a hollow-bore needle into the lumen of a large vein to obtain a specimen |
Vacutainer | tube that allows the drawing of multiple blood samples |
-ography | procedure in which an image is produced |
-ogram | actual image or results of a test |
-oscopy | visualization of body structures |
-centesis | puncture of a body cavity |
sputum | secretions from the lung; contains mucus, cellular debris, or microorganisms, and may contain blood or pus |