True or False?
The System International d'Unites (SI) uses standard prefixes
True
Which unit is not an SI unit?
d) pound
Distilled water is water produced by:
d) Distillation
A substance dissolved in a liquid is:
b) A solute
A percent solution is expressed as:
a) the amount of solute per 100 total units of solution
The expression which mathematically represents the dissociation of weak acids and bases is known as:
c) the Henderson-Hasselbalch equation
True or False?
If a thermometer used in a clinical lab is calibrated, it is not necessary to record the temp. for QA purposes.
False
Pipets are devices used to tranfer volumes of liquids. Which is not a pipet?
d) Erlenmeyer pipet
Which is not true about centrifuges used in a clinical lab?
c) the RPM indicator on the centrifuge always indicates the correct RPMs
How manu grams of NaOH are required to make 1 liter of a 10% NaOH (w/v) solution?
d) 100 grams
If a patient's glucose is assayed and reported to be 1000mg/dl and it is diluted 1:4, what should be the reanalyzed value?
b) 250 mg/dl
True or False?
Beer's Law describes the relationship between the concentration of a solution and the solution's absorbance in many photometric determinations.
True
The needle gauge with the largest lumen is:
16
The purpose of the OSHA Hazard Communication, General Industry Safety Standard, 29 CFR 1910.1200 is to require employers to establish a program ensuring personnel are provided with information regarding the workplace dangers of:
Hazardous chemicals
Labels on shipped chemicals from manufacturers, importer or distributor are required to include information on?
Appropriate hazard warnings
A chemical that causes immediate visible destruction or irreversible alterations of human tissue at the contact site is best classified as an:
Corrosive
An example of personal protective Equipment (PPE) is:
A lab coat
The use of standard "Universal Precaution" minimizes exposure to:
Blood borne Pathogens
Which is the most likely mode of tranmission for blood borne pathogens?
Parenteral inoculation of immunodificiency disease
A vacutainer tube with a green stopper normally contains:
Heparin
The major source of safety information for employees in a clinical lab who may use hazardous chemicals is:
The material safety data sheet
A class C fire is classified as:
Electrical equipment, switches, motors
Which chemical substances should be stored seperately?