All About the Numbers
There are this many nanograms in a gram
What is 10-9?
This should be remembered when handling a tube of blood
What is protection by wearing gloves and a lab coat?
Lean Six Sigma is a combination of strategies designed to promote this
What is improved efficiency and waste elimination?
The component used to isolate wavelength in a spectrophotometer is called this
What is a monochromator?
What is the most appropriate way to identify analytes that may be distributed between two liquids?
The earliest automated analyzers were of this kind of design
What is continuous flow design?
A patient sample for uric acid gave an absorbance reading of 0.4; the 50 mg/dL standard used in the test gave an abs. reading of 0.1. What is the concentration of uric acid in the pt's sample in g/dL?
What is 0.2 g/dL
When finished with lab exercises for the day, this order of events should be followed to stay protected
What is clean work area, remove gloves, then wash hands?
In the DMAIC methodology, identification of root causes of process inefficiency is part of this phase
What is analyze?
Wavelengths that occur in the blue-violet region have low energy compared to wavelengths composing the orange-red region. True or False
What is False?
In high performance thin-layer chromatography (HPTLC), developed bands are compared to reference standard concentrations. Each band is measured by this
What is a densitometer?
This is of little concern in most automated chemistry analyzers
What is operator change?
The mean of serum glucose levels is 101 mg/dL for the first 10 days with a +/- 2SD. Using 95% confidence limits means that 95% of the control values would fall within this range
What is 92-108?
This activity can spread HIV or HBV from one person to another outside of the lab
What is sexual activity?
A process sigma represents the capability of a process to meet its criteria for acceptability. This process would not include this factor
What is cost?
This range of wavelengths represent the visible region
What is 350 to 750 nm?
In ion-exchange chromatography, solute mixtures are separated by virtue of these two factors of ionic species
What is magnitude and charge?
This is true of a fully automated clinical laboratory
What is they are currently in existance?
The mean of serum glucose levels is 100 mg/dL with a standard deviation of 4md/dL. The coefficient of variation for these statistics would be this
What is 4%?
Universal precautions should be observed when working with these types of specimens
What is all specimens?
When a test has excellent performance, one can expect this
What is few errors?
The "spreading" of a white beam of light into a spectrum is called this
What is dispersion?
In thin-layer chromatography, the solvent migrates up the sorbent by this action
What is capillary action?
Clinical chemistry automation is driven by these three factors
What is portable point-of-care testing, turn-around times and variation of tests?
On day 4 of 10 days of glucose serum results, the light source was changed in the spectrophotometer. The elevated results seen in the quality control after that day would be classified as this
What is a shift?
This disease has the highest incidence of infectious risk in the clinical laboratory?
What is Hepatitis B?
The Lean Six Sigma method of process improvement assumes that processes are inherently dynamic. True or False
What is True?
This device produces a "linear spectrum"
What is diffraction grating?
In the clinical toxicology laboratory, it is common to use this to measure drugs of abuse
Wat is a gas chromatography mass spectrometer?
Total laboratory automation does not incorporate this as part of the preanalytical phase
What is reagent dispensing?
On day 7, if the control results measure greater than 2SD, the first thing you should do is this
What is rerun the controls with the same reagents?
This procedure is the most basic and effective in preventing the spread of infectious diseases in the hospital environment
What is handwashing?
The Lean Six Sigma method is an iterative protocol that, when one goal is achieved, is satisfied with the endpoint. True or False
What is false?
Energy or frequency of light waves varies this way with the wave length
What is inversely?
High performance liquid chromatography utilizes these four components
What are mobile phase pump, stationary phase column, component detector, and chromatographic recorder?
Current automated analyzers are able to assess this annoying pest
What is interference?