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clls-203 lab
lab analysis final
| Question | Answer |
|---|---|
| electrical conductivity that physically detects a clot | mechanical endpoint |
| Used to measure light scattered at a 90 degree angle by particles in solution | nephelometry |
| decrease in light flow detects clot formation utilizes what method | photo-optical endpoint |
| process of generating photons of light via a chemical reaction | chemilluminescence |
| methodology used in urinalysis dipstick, micro biochemical & routine chemistry testing | spectrophotometry |
| separating complexes based on mobile phase and stationary phase | chromatography |
| in electrophoresis, particles are separated on the basis of | net charge, size and shape |
| optimal membrane choice for ISE measurement of pH | glass |
| mechanical endpoint | coagulation studies |
| spectrophotometry | urinalysis biochemical testing |
| flow cytometry | automated cell differential |
| electrical impedence | complete blood count |
| flame photometry | concentrations of Na+, K+ and Li+ |
| measures analyte separated by chromotography | Mass spectrophotometry |
| measure electromagnetic radiation | atomic absorption |
| measures emitted light generate by a chemical | chemilluminescensce |
| a holmium oxide filter is used to determine what | wavelength accuracy of a spectrophotometer |
| coulter principle | electrical impedence |
| photometry | measures light intensity without regard to wave length |
| spectrophotometry | measures light intensity with regard to wavelength |
| nephlometry | measures scattered light at a 90 degree angle |
| Beer's law in spectrophotometry | relation of absorbance and transmittance to concentration |
| potentiometry | electrochemical cell = 2 half cells |
| labeled and unlabeled analyte introduced at same time and may attach to binding sites on the antibody | competitive immunoassay |
| type of immunoassay that does not require separation of bound and free factions | homogenous |
| value which occurs with the greatest frequency | mode |
| calculated average of values | mean |
| value at the center/midpoint fo the observation | median |
| closeness of the agreement between the measured value of an analyte to its true value | accuracy |
| bias in 1 direction that displaced the mean | shift |
| gradual increase or decrease in QC values | trend |
| FPIA | competitive |
| MEIA | sandwich |
| EMIT | competitive |
| obtain the same result time after time | precision |
| attraction of antibody/antigen pair, likelihood of binding | affinity |
| after binding likelihood of separation | avidity |
| separation techniques | adsorption, precipitation, solid phase |
| adsorption | particles are added that trap antigen, labeled or unlabeled |
| precipitation | environment is altered to affect solubility of protein by adding a substance |
| solid phase | use to immobilize reagant antibody or antigen |
| quality assurance | every aspect of the lab |
| quality control | analytical piece |
| maximum # of specimen that can be analyzed in a given time | throughput |
| random access testing | any test can be run on any specimen |
| sequential testing | series of tests are run on a sample |
| continuous flow analyzer | all samples flow through a common reaction vessel |
| centrifugal analyzer | reagent and sample in a cuvette on a rotor. Reaction occures by spinning |
| discrete sample analyzer | each sample travels in its own reaction vessel |
| substance that is dissolved in a liquid | solute |
| to make a critical dilution and measurement one should use a | volumetric pipette |
| A pipette with TC needs to be | blown out |
| in the SI system temp is measured on what scale | Kelvin |
| This type of microscopy is used to see unstained elements such as platelets | phase contrast microscopy |
| temp at which water boils in Fahrenheit | 212 degrees |
| type of plastic used in a laboratory | polystyrene and polycarbonate |
| types of glass used in a laboratory | pyrex and borosilicate |
| agency that oversees chemical purity | IUPAC |