WITH RATIONALES AND EXPERT VERIFIED
ANSWERS LATEST UPDATE GRADED A
Whole blood consists mostly of which of the following?
Select one:
a. Water
b. Cells
c. Solutes
d. Tissue
Rationale - whole blood is composed of water, solutes, and cells. Whole blood is 55-60% plasma
and 40-45% cells. Plasma is about 92% water
The correct answer is: Water
Which type of blood cell is responsible for gas exchange in the circulating blood?
Select one:
a. Macrophages
b. Red blood cells
c. White blood cells
d. Platelets
Rationale - Red blood cells (erythrocytes) transport oxygen and help transport Carbon Dioxide.
The correct answer is: Red blood cells
Professional negligence is also called:
Select one:
a. Malfunction
b. Malice
c. Arbitration
d. Malpractice
Rationale - Malpractice is a form of professional negligence
The correct answer is: Malpractice
Which of the following items is the most important for phlebotomists to keep in mind during
their daily routine in medical settings?
Select one:
a. Consent
b. Burglary
,c. Privilege granted to a physician
d. Confidentiality
Rationale - Patient confidentiality is the most important part of the health care industry.
The correct answer is: Confidentiality
Which department performs chemical screening tests on urine specimens?
Select one:
a. Coagulation
b. Microbiology
c. Urinalysis
d. Hematology
Rationale - The urinalysis department performs chemical screening on urine specimens as part of
a urinalysis test
The correct answer is: Urinalysis
Which department monitors warfarin therapy?
Select one:
a. Immunology
b. Chemistry
c. Microbiology
d. Coagulation
Rationale - Warfarin is an anticoagulant and is monitored closely by the prothrombin time test
which is performed in the coagulation department
The correct answer is: Coagulation
Which type of blood cell is responsible for defense and immunity?
Select one:
a. Macrophages
b. Red blood cells
c. Platelets
d. White blood cells
Rationale - Leukocytes (white blood cells) are responsible for defense and immunity
The correct answer is: White blood cells
The liquid portion of a blood specimen (without an anticoagulant) is called:
Select one:
a. Serum
b. Oxygenated blood
,c. Cellular components
d. Plasma
Rationale - Plasma is the liquid portion of blood
The correct answer is: Serum
This is the scrubbing of instruments with special brushes and detergents to remove blood,
mucous, etc.
Select one:
a. Sanitization
b. Sterilization
c. Disinfection
d. Distillation
Rationale - Sanitization is the scrubbing of instruments with special brushes and detergents to
remove blood, mucous, etc
The correct answer is: Sanitization
This is the process that involves a soaking or wiping process and inhibits the activity of disease-
causing organisms.
Select one:
a. Disinfection
b. Treated with antiseptics
c. Sanitizing
d. Sterilization
Rationale - Disinfecting is the process that destroys microorganisms
The correct answer is: Disinfection
The process used for supplies that would come in contact with internal body tissue or an open
wound. It involves the use of heat (steam) and an autoclave.
Select one:
a. Sanitization
b. Disinfection
c. Surgical asepsis
d. Sterilization
Rationale - Sterilization is the process that destroys microorganisms and includes either heat or
cold water
The correct answer is: Sterilization
Which blood test includes WBC and RBS counts, hemoglobin and hematocrit?
Select one:
a. Hgb, Hct
, b. PTT
c. CBC
d. Blood typing
Rationale - A CBC includes a WBC, RBC's, platelets, hemoglobin and hematocrit
The correct answer is: CBC
The most common blood type is:
Select one:
a. A
b. B
c. AB
d. O
Rationale - 45% of the population have type O blood
The correct answer is: O
Small red spots on a patient's skin due to a blood clotting abnormality is referred to as:
Select one:
a. Petechiae
b. Hemolysis
c. Syncope
d. Hemoconentration
Rationale - Petechiae is small, red, smooth hemorrhagic spots appearing on a patient's skin
The correct answer is: Petechiae
A decrease in the plasma volume with an increased concentration of cells and larger molecules is
referred to as:
Select one:
a. Hemoconcentration
b. Hemotherapy
c. Hemolysis
d. Scleroses
Rationale - Hemoconcentration is a decrease in plasma volume, with an increased concentration
of cells and larger molecules - could be caused by squeezing, probing or prolonged tourniquet
application.