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Ch. 40
Introduction to the clinical laboratory
Question | Answer |
---|---|
analyzer | automated instrument used to test blood and other body fluids for various substances |
anatomical laboratory | section of the laboratory that includes histology and cytology |
automated method | laboratory test preformed on an automated instrument or machine |
biopsy | removal and microscopic observation of a small piece of living tissue |
clinical diagnosis | diagnosis based on actual observations, diagnostic results, and symptoms |
manual method | test method in which the steps of testing are done by hand instead of by automated instrument |
normal range | range of values in which a test result should fall for most healthy individuals |
panel | group of blood tests that evaluate the function of a particular body system; aka profile |
physician's office laboratory (POL) | laboratory within the medical office |
proficiency testing | tests on unknown specimens provided by an external monitoring agency, such as the state health department, and the college of American pathologists, to meet quality control requirements |
qualitative results | lab result that is descriptive, rather than providing a numerical value |
quality control | methods used to monitor the accuracy of lab results |
quantitative results | results that use a numerical value |
reagent | substance used in a chemical reaction |
reference lab | independent lab used by pols and hospitals to perform specialized testing |
requisition slip | form used to order lab tests |
routine test | lab test ordered as part of a regular office visit |
specimen | blood, other body fluid, or body tissue submitted for lab analysis |
ALT | alanine aminotransferase |
AST | aspartate aminotransferase |
BUN | blood urea nitrogen |
C&S | culture and sensitivity |
CBC | complete blood count |
ESR | erythrocyte sedimentation rate, aka sed rate |
FBS | fasting blood sugar |
H&H | hemoglobin and hematocrit |
Lytes | electrolytes |
PTT | partial thromboplastin time |
TSH | thyroid stimulating hormone |
example of a health assessment | evaluation of electrolytes |
example of disease detection | prostate specific antigen to screen for prostate cancer |
example of diagnosis | rapid strep |
example of monitoring treatment or disease progression | levels of thyroid stimulating hormone |
example of disease prevention | pap smear |
blood typing | blood bank |
type and screening | blood bank |
basic metabolic panel | chemistry |
blood urea nitrogen | chemistry |
calcium | chemistry |
cholesterol | chemistry |
creatine kinase | chemistry |
creatinine | chemistry |
electrolytes | chemistry |
glucose | chemistry |
liver function panel | chemistry |
thyroid stimulating hormone | chemistry |
troponin | chemistry |
bleeding time | coagulation |
partial thromboplastin time | coagulation |
platelet count | coagulation |
prothrombine time w/ INR | coagulation |
papanicolaou (PAP) smear | cytology |
urine cytology | cytology |
sputum cytology | cytology |
complete blood count | hematology |
erythrocyte sedimentation rate | hematology |
hematocrit | hematology |
hemoglobin | hematology |
biopsy | histology |
rapid strep a | microbiology |
throat culture | microbiology |
urine culture | microbiology |
wound culture | microbiology |
fungal culture | mycology |
ova and parasite test | parasitology |
infectious mononucleosis test | serology |
rheumatic factor test | serology |
syphilis tests | serology |
complete UA | urinalysis |
urine pregnancy test | urinalysis |
blood bank | section of lab where blood is collected, stored, and prepared for transfusion |
chemistry | most automated area of the lab, where instruments are computerized and designed to preform single and multiple tests from a small specimen |
coagulation | usually a subsection of the hematology department that evaluates the overall process of hemostasis |
cytology | anatomic section of the lab that deals with the study of cells |
hematology | study of the formed (cellular) elements of the blood |
histology | some physicians preform biopsies or routine excisions in the office and submit the specimen to a histology lab or reference lab for processing |
microbiology | responsible for identification of pathogenic microorganisms and hospital infection control |
mycology | responsible for the collection and isolation of fungi |
parasitology | responsible for microscopic examination of stool specimens for the presence of parasites, ova, or larvae |
serology | responsible for evaluating the body's immune responses |
urinalysis | possibly a separate section or part of the hematology or chemistry section where routine screening procedures are preformed to detect disorders and infections of the kidney |
medical technologist (MT) | BS in medical technology, clinical lab science, or biotechnology. lab manager, department supervisor, specialist, or general tech $41,000-$52,000 |
medical lab tech (MLT) | associate of science degree, general tech in all lab departments $31,000-$41,000 |
examples of waived tests | dipstick UA, fecal occult blood testing, urine pregnancy test, hemoglobin, blood glucose, rapid strep |
what do you do when quality control isn't within the correct limits | repeat the control, check control's exp date, check exp date of all testing reagents, check to make sure instrument is calibrated correctly |
what is required on every lab requisition slip | name of lab where slip was issued, type of test, priority, pt name and address, physician's name and address, pt age and gender, date of collection, lab tests requested, microbiological specimen type, clinical diagnosis, and medications |
daily microscope maintenance | clean eye pieces and objectives |
yearly microscope maintenance | professional cleaning |
centrifuge / micro-centrifuge maintenance | clean inside w/ 10% bleach prn, change brushes prn, check rotation speed yearly |
incubator maintenance | check temp daily |
refrigerator maintenance | check temp daily |