Laboratory Mathematics Flashcards
____ is the minimum number of digits needed to express a particular value in scientific notation without the loss of accuracy.
Significant Figures
Numbers the contain zeroes within them is ____.
significant
Numbers that contain zeroes at the end of the number is ____.
significant
Numbers that contain zeroes between the decimal point and the first digit is ____.
not significant
All non-zero numbers are ____.
significant
All zeros to the right of the decimal are ____ when followed by a non-zero number.
not significant
All zeroes to the left of the decimal are ____.
not significant
Two Major Systems
- English System
- Metric System
____ is the first system of measurement.
English System
____ was created by a king.
English System
English system was created by a ____ based on his foot.
king
English system was based on ____.
the King’s foot
lmao
Which system is inaccurate?
English System
____ is converted using fractions.
English System
____ was created by scientists.
Metric System
Metric system was created by ____.
scientists
____ was based on units by 10.
Metric System
Metric system was based on ____.
units of 10 (toes and fingers)
SI unit is also known as ____ in French.
le Systeme International
In Clinical Chemistry, when volume is measured, ____ is used as the unit of measurement.
Liter (L)
In Clinical Chemistry, when analytes are measured, ____ is used as the unit of measurement.
mol/vol
In Clinical Chemistry, when enzymes are measured, ____ is used as the unit of measurement.
Katal (kat)
Components of a Laboratory Result
- Actual value
- Unit
It is recommended that ____ be reported using moles of solute per volume of solution (substance concentration).
analyte
It is recommended that analyte be reported using ____.
moles of solute per volume of solution
Reporting of laboratory results is often expressed in terms of ____.
substance concentration or the mass of a substance
Give the Formula
Celsius to Fahrenheit
- (C x 9/5) + 32
- (C x 1.8) + 32
Give the Formula
Fahrenheit to Celsius
- (F - 32) 5/9
- (F - 32) (0.556)
Give the Formula
Kelvin to Celsius
K - 273
Give the Formula
Celsius to Kelvin
C + 273
____ are a homogenous mixture of two or more substances with each substance retaining its own chemical identity.
Solutions
Components of a Solution
- Solvent
- Solute
____ is the component of a solution that is present in the greatest amount.
Solvent
____ is the component of a solution that dissolves the substance with it.
Solvent
____ is the component of a solution that is present in a lesser amount.
Solute
____ is the component of a solution that is being dissolved.
Solute
Types of Solutions
- Colloidal
- Emulsion
- Saturated
- Unsaturated
Types of Solutions
It is not a true solution because the individual molecules are not mixed on a molecular basis.
Colloidal Solution
Types of Solutions
These are colloidal solutions in which disperse phase and the disperse medium are immiscible.
Emulsions
Types of Solutions
A solution in which the dissolved solute is in equilibrium with the undissolved solute.
Saturated Solution
Types of Solutions
It does not contain all the solute molecules that the solution could possibly hold.
Unsaturated Solution
____ refers to the weight or volume of the solute present in a specified amount of solvent or a solution.
Concentration of Solutions
Three Basic Types of Solutions
- Percent
- Molar
- Normal
____ are expressed as equal parts per hundred or the amount of solute per 100 total units of solution.
Percent Solutions
Three Expression of Percent Solution
- Percent by mass
- Percent by volume
- Mass-volume percent
Which expression of percent solution is not commonly used in the clinical laboratory?
Percent solutions
