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laboratory and radiology
Terms in this set (39)
urine, blood, sputum, stool
most common specimens
pts should not eat or drink fluid (except water).
examines urine chemically, physically, & microscopically
examines blood for diseases
identifies pathogens in the body
studies body tissues microscopically to detect diseased tissue
examines cells microscopically to discover abnormal cells
examines substances in body fluids, feces, & tissues
serology & blood banking
studies antigen-antibody reactions to discover presence of foreign substances or disease
determines parasite that is causing illness
3 special urine tests
specific gravity, pregnancy test, drug tests
specific gravity tells what info about urine?
the dilution of urine
high specific gravity or concentrated urine may be caused by
dehydration, sugar in the urine, too many substances in the urine due to kidney disease
diluted urine may be caused by?
diabetes insipidus, diuretic medications, kidney disease
substance coughed up from the bronchi
what substances should you avoid collecting for a sputum specimen
saliva & postnasal drip
what diseases can a sputum specimen help determine
tuberculosis, pneumonia, candidiasis, fungal infections
what info does a stool specimen give the physician
blood, bacteria, ova, parasites
list 2 guidelines to give concerning the collection of a stool specimen
feces must not be contaminated with urine, pt must not take a laxative unless instructed to
what is the most common test performed on stool?
what does occult blood screening detect?
bleeding in the intestinal tract
occult blood may indicate
cancer, polyps, lesions in the colon or rectum, gastrointestinal bleeding
hidden or unseen
define culture & sensitivity test
identifies the antibiotic that kills the organism and identifies the antibiotics to which the organism is resistant
able to protect itself
whole blood has many formed elements that are suspended in a clear yellow liquid
plasma makes up ___ of the whole blood
the 3 formed elements of blood are?
erythrocytes, leukocytes, thrombocytes
protect against disease
list 4 frequently ordered blood tests
complete blood test, hematocrit/microhematocrit, some bleeding and coagulation times, some chemical and agglutination test
the average adult has how many quarts of blood?
test specimens, isolate infecting agents
blood bank lab
identifies blood types and performs test to determine the campatibility of blood for transfusion
performs tests, responsible for tests usch as pap smears
test blood specimens to determine the type and number of red and white blood cells and platelets
provides info about the concentration of proteins, carbs, and fats found in the blood
test blood to determine exposure to infectious agents
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