Heme Chap 1-5 Quiz Rodak
Which of following requires wearing a face shield or eye goggles?
Cleaning up an acetic acid spill
A patient's WBCs are counted on an automated cell counter 10 times. The mean WBC is 8000/ml, and the standard deviation (SD) is 300. What is the coefficient of variation(CV)?
3.8%
Which of the following is true regarding acceptable fire safety?
A written fire protection and response plan must be in place and tested quarterly.
Which laboratory specimens must be treated with standard (universal) precautions?
All human blood and body fluids
Which of the following is true regarding reference ranges?
Are ranges of values for an analyte in normal healthy people
Hematology is the study of:
Blood cells
Which of the following is acceptable safe practice?
Disposing of used glass slides in sharps container
The primary function of platelets is to:
Facilitate blood clotting
Which of the following can be evaluated only through the microscopic examination of a stained blood film?
Presence or absence of blood cell inclusions
Which of the following procedures is safe from the production of an aerosol mist?
Manual differentials on blood films
What is the best source of information regarding the nature of a chemical and its hazards?
Material safety data sheet (MSDS)
Who is responsible for laboratory employee safety?
OSHA, Employer, Employee
Hematocrit is also called:
Packed red cell volume
Universal standard precautions written by OSHA are designed to:
Protect employees from possible infectious contamination.
What is the first and most important thing to do before repairing electrical laboratory equipment?
Unplug it
Where must fluid-resistant laboratory coats be worn?
Walking to a patient room to collect a sample
Safety training must be provided and documented at the time of initial assignment and how often thereafter?
Yearly
What is the best substance to use for cleaning oil from microscope objectives?
alcohol-based products
A 10% solution of household bleach is used to clean contaminated surfaces in the clinical laboratory. This 10% solution should be prepared:
daily
A laboratory comparing its results to those of other laboratories on the same specimen is an example of:
external quality control
Personal protective clothing , which must be provided by the employer, includes:
gloves
Which test result is most affected by the absence of patient fasting?
glucose
Proper specimen collection and patient satisfaction are components of:
quality assurance
Safety requirements for phlebotomy include:
wearing gloves
The morphology of blood cells is important to evaluate:
When flag limits established by clinical laboratory scientists in the laboratory are exceeded
