Measurements Flashcards
(26 cards)
Units with moles or mol
SI units
Units without moles or mol
Conventional units
1) actual value
2) label; identifying the units of the expression
Unit of measurement/quantitative laboratory
Autopipette/micropipette conversation mL to um?
1mL = 1000 um
1) used in many countries
2) based on the metric system
3) universal
SI units or Systeme International d’unites
7 basic units
- length (meter)
- mass (kilogram)
- quantity of substance (mole)
- time (seconds)
- electric current (ampere)
- temperature (kelvin)
- luminous intensity (candela)
4 Derived units
- frequency (Hertz)
- force (Newton)
- degree Celsius (
- catalytic activity (Katal)
5 accepted Non-SI units
- minutes (60sec)
- hour (3600sec)
- day (86400sec)
- liter (1dm^3 = 10^-3 m^3)
- angstrom (0.1nm = 10^-10 m)
Laboratory results reporting
- substance concentration
* mass of a substance (mmol/L)
It is where you compare your results
Reference value
Electrolytes conventional unit
mEq/L
Moles of solute/volume of solution
Analytes
Electronic medical records, coding and billing
Electronic reporting results
What is LOINC?
Logical Observation Identifiers names of Codes System
What is IFCC/IUPAC?
International Federation of Clinical Chemistry/International Union of Pure and Applied Chemistry
What is ASTM?
American Society for Testing and Materials
What is HL7?
Health level 7
What is SNOMED RT?
Systematized Nomenclature of Medicine, Reference Technology
True or False: Is reference ranges of Clinical Chemistry in NOT UNIVERSAL?
True. Because it requires proper interpretation
2 Solution properties
- solute/analytes
* solvent
Biological solution properties concentration expressed as:
- % (percent solution)
- M (Molarity)
- N (Normality)
- m (molality)
Relationship of Absorbance and Concentration
Directly proportional
Amount of solution/100 total units of solution?
Percent solution
Means parts per 100%
Percent
