Final Exam Prep for:
Rodaks Hematology
** Expert-Verified Explanation
** Questions with Verified Answer
** New Edition |Updated
** 100% Guaranteed Pass
** 100% Correct Answers | Graded A+
,Standard precautions apply to all of the following except: d. Concentrated acids
a. Blood
b. Cerebrospinal fluid
c. Semen
d. Concentrated acids
The most important practice in preventing the spread of b. Proper hand washing
disease is:
a. Wearing masks during patient contact
b. Proper hand washing
c. Wearing disposable laboratory coats
d.Identifying specimens from known or suspected HIV
and HBV-infected patients with a red label
The appropriate dilution of bleach to be used in c. 1:10
laboratory disinfection is:
a. 1:2
b. 1:5
c. 1:10
d. 1:100
How frequently should fire alarms and sprinkler systems c. Quarterly
be tested?
a. Weekly
b. Monthly
c. Quarterly
d. Annually
Where should alcohol and other flammable chemicals be a. In an approved safety can or storage cabinet away from heat sources
stored?
a. In an approved safety can or storage cabinet away
from heat sources
b. Under a hood and arranged alphabetically for ease of
identification in an emergency
c. In a refrigerator at 28 C to 88 C to reduce volatilization
d. On a low shelf in an area protected from light
The most frequent cause of needle punctures is: b. Improper disposal of phlebotomy equipment
a. Patient movement during venipuncture
b. Improper disposal of phlebotomy equipment
c. Inattention during removal of needle after venipuncture
d. Failure to attach needle firmly to syringe or tube holder
Under which of the following circumstances would a SDS c. A pregnant laboratory employee has asked whether she needs to be
be helpful? concerned about working with a given reagent
a. A phlebotomist has experienced a needle puncture
with a clean needle.
b. A fire extinguisher failed during routine testing.
c. A pregnant laboratory employee has asked whether
she needs to be concerned about working with a given
reagent.
d. During a safety inspection, an aged microscope power
supply is found to have a frayed power cord
,It is a busy evening in the City Hospital hematology b. Mary should have used a shield when opening the tube
department. One staff member called in sick, and there
was a major auto accident that has one staff member
tied up in the blood bank all evening. Mary, the medical
laboratory scientist covering hematology, is in a hurry to
get a stat sample on the analyzer but needs to pour off
an aliquot for another department. She is wearing gloves
and a lab coat. She carefully covers the stopper of the
well-mixed ethylenediaminetetraacetic acid (EDTA) tube
with a gauze square and tilts the stopper toward her so it
opens away from her. She pours off about 1 mL into a
prelabeled tube, replaces the stopper of the EDTA tube,
and puts it in the sample rack and sets it on the
conveyor. She then brings the poured sample off to the
other department. How would you assess Mary's safety
practice?
a. Mary was careful and followed all appropriate
procedures.
b. Mary should have used a shi
What class fire extinguisher would be appropriate to use b. Class B
on a fire in a chemical cabinet?
a. Class A
b. Class B
c. Class C
d. Class D
According to OSHA standards, laboratory coats must be b. Made of cloth fabric that can be readily laundered
all of the following except:
a. Water resistant
b. Made of cloth fabric that can be readily laundered
c. Long-sleeved
d. Worn fully buttoned
Which one of the following would NOT be part of a safety d. Budget for engineering controls and personal protective equipment
management plan?
a. Job safety analysis
b. Risk assessment of potential safety hazards
c. Mechanism for reporting accidents
d. Budget for engineering controls and personal
protective equipment
Which step in the CLSI procedure for venipuncture is a. Wearing gloves
part of standard precautions?
a. Wearing gloves
b. Positively identifying the patient
c. Cleansing the site for the venipuncture
d. Bandaging the venipuncture site
Select the needle most commonly used in standard b. One inch, 21 gauge
venipuncture in an adult:
a. One inch, 18 gauge
b. One inch, 21 gauge
c. One-half inch, 23 gauge
d. One-half inch, 25 gauge
For a complete blood count (hematology) and b. No, although EDTA is used for hematologic testing, citrate, not heparin, is used
measurement of prothrombin time (coagulation), the for coagulation testing.
phlebotomist collected blood into lavender stopper and
green stopper tubes. Are these specimens acceptable?
a. Yes, EDTA is used for hematologic testing and heparin
is used for coagulation testing.
b. No, although EDTA is used for hematologic testing,
citrate, not heparin, is used for coagulation testing.
c. No, although heparin is used for hematologic testing,
citrate, not EDTA, is used for coagulation testing.
d. No, hematologic testing requires citrate and
coagulation testing requires a clot, so neither tube is
acceptable
, The vein of choice for performing a venipuncture is the: c. Median or median cubital, because it has the lowest risk of damaging nerves
in the arm
a. Basilic, because it is the most prominent vein in the
antecubital fossa
b. Cephalic or accessory cephalic, because it is the least
painful site
c. Median or median cubital, because it has the lowest
risk of damaging nerves in the arm
d. One of the hand veins, because they are most
superficial and easily accessed
The most important step in phlebotomy is: b. Identifying the patient
a. Cleansing the site
b. Identifying the patient
c. Selecting the proper needle length
d. Using the correct evacuated tube
The venipuncture needle should be inserted into the arm b. Up and an angle of insertion less than 30 degrees
with the bevel facing:
a. Down and an angle of insertion between 15 and 30
degrees
b. Up and an angle of insertion less than 30 degrees
c. Down and an angle of insertion greater than 45
degrees
d. Up and an angle of insertion between 30 and 45
degrees
Failure to obtain blood by venipuncture may occur b. Tying the tourniquet too tightly
because of all of the following except:
a. Incorrect needle positioning
b. Tying the tourniquet too tightly
c. Inadequate vacuum in the tube
d. Collapsed vein
What is the recommended order of draw when the d. Blood culture, coagulation, nonadditive, and gel separator or other additives
evacuated tube system is used?
a. Gel separator, nonadditive, coagulation, and blood
culture
b. Additive, nonadditive, gel separator, and blood culture
c. Nonadditive, blood culture, coagulation, and other
additives
d. Blood culture, coagulation, nonadditive, and gel
separator or other additives
Which one of the following is an acceptable site for skin b. Lateral or medial plantar surface of the heel
puncture on infants:
a. Back curvature of the heel
b. Lateral or medial plantar surface of the heel
c. Plantar surface of the heel close to the arch of the foot
d. Middle of the plantar surface of the heel
An anticoagulant is an additive placed in evacuated c. Prevent the blood from clotting
tubes to:
a. Make the blood clot faster
b. Dilute the blood before testing
c. Prevent the blood from clotting
d. Ensure the sterility of the tube
Which one of the following is a reason for specimen c. Specimen in lavender stopper tube grossly hemolyzed
rejection:
a. Clot in a red stopper tube
b. Specimen collected for blood cortisol in the morning
c. Specimen in lavender stopper tube grossly hemolyzed
d. Room number is missing from the specimen tube label
Rodaks Hematology
** Expert-Verified Explanation
** Questions with Verified Answer
** New Edition |Updated
** 100% Guaranteed Pass
** 100% Correct Answers | Graded A+
,Standard precautions apply to all of the following except: d. Concentrated acids
a. Blood
b. Cerebrospinal fluid
c. Semen
d. Concentrated acids
The most important practice in preventing the spread of b. Proper hand washing
disease is:
a. Wearing masks during patient contact
b. Proper hand washing
c. Wearing disposable laboratory coats
d.Identifying specimens from known or suspected HIV
and HBV-infected patients with a red label
The appropriate dilution of bleach to be used in c. 1:10
laboratory disinfection is:
a. 1:2
b. 1:5
c. 1:10
d. 1:100
How frequently should fire alarms and sprinkler systems c. Quarterly
be tested?
a. Weekly
b. Monthly
c. Quarterly
d. Annually
Where should alcohol and other flammable chemicals be a. In an approved safety can or storage cabinet away from heat sources
stored?
a. In an approved safety can or storage cabinet away
from heat sources
b. Under a hood and arranged alphabetically for ease of
identification in an emergency
c. In a refrigerator at 28 C to 88 C to reduce volatilization
d. On a low shelf in an area protected from light
The most frequent cause of needle punctures is: b. Improper disposal of phlebotomy equipment
a. Patient movement during venipuncture
b. Improper disposal of phlebotomy equipment
c. Inattention during removal of needle after venipuncture
d. Failure to attach needle firmly to syringe or tube holder
Under which of the following circumstances would a SDS c. A pregnant laboratory employee has asked whether she needs to be
be helpful? concerned about working with a given reagent
a. A phlebotomist has experienced a needle puncture
with a clean needle.
b. A fire extinguisher failed during routine testing.
c. A pregnant laboratory employee has asked whether
she needs to be concerned about working with a given
reagent.
d. During a safety inspection, an aged microscope power
supply is found to have a frayed power cord
,It is a busy evening in the City Hospital hematology b. Mary should have used a shield when opening the tube
department. One staff member called in sick, and there
was a major auto accident that has one staff member
tied up in the blood bank all evening. Mary, the medical
laboratory scientist covering hematology, is in a hurry to
get a stat sample on the analyzer but needs to pour off
an aliquot for another department. She is wearing gloves
and a lab coat. She carefully covers the stopper of the
well-mixed ethylenediaminetetraacetic acid (EDTA) tube
with a gauze square and tilts the stopper toward her so it
opens away from her. She pours off about 1 mL into a
prelabeled tube, replaces the stopper of the EDTA tube,
and puts it in the sample rack and sets it on the
conveyor. She then brings the poured sample off to the
other department. How would you assess Mary's safety
practice?
a. Mary was careful and followed all appropriate
procedures.
b. Mary should have used a shi
What class fire extinguisher would be appropriate to use b. Class B
on a fire in a chemical cabinet?
a. Class A
b. Class B
c. Class C
d. Class D
According to OSHA standards, laboratory coats must be b. Made of cloth fabric that can be readily laundered
all of the following except:
a. Water resistant
b. Made of cloth fabric that can be readily laundered
c. Long-sleeved
d. Worn fully buttoned
Which one of the following would NOT be part of a safety d. Budget for engineering controls and personal protective equipment
management plan?
a. Job safety analysis
b. Risk assessment of potential safety hazards
c. Mechanism for reporting accidents
d. Budget for engineering controls and personal
protective equipment
Which step in the CLSI procedure for venipuncture is a. Wearing gloves
part of standard precautions?
a. Wearing gloves
b. Positively identifying the patient
c. Cleansing the site for the venipuncture
d. Bandaging the venipuncture site
Select the needle most commonly used in standard b. One inch, 21 gauge
venipuncture in an adult:
a. One inch, 18 gauge
b. One inch, 21 gauge
c. One-half inch, 23 gauge
d. One-half inch, 25 gauge
For a complete blood count (hematology) and b. No, although EDTA is used for hematologic testing, citrate, not heparin, is used
measurement of prothrombin time (coagulation), the for coagulation testing.
phlebotomist collected blood into lavender stopper and
green stopper tubes. Are these specimens acceptable?
a. Yes, EDTA is used for hematologic testing and heparin
is used for coagulation testing.
b. No, although EDTA is used for hematologic testing,
citrate, not heparin, is used for coagulation testing.
c. No, although heparin is used for hematologic testing,
citrate, not EDTA, is used for coagulation testing.
d. No, hematologic testing requires citrate and
coagulation testing requires a clot, so neither tube is
acceptable
, The vein of choice for performing a venipuncture is the: c. Median or median cubital, because it has the lowest risk of damaging nerves
in the arm
a. Basilic, because it is the most prominent vein in the
antecubital fossa
b. Cephalic or accessory cephalic, because it is the least
painful site
c. Median or median cubital, because it has the lowest
risk of damaging nerves in the arm
d. One of the hand veins, because they are most
superficial and easily accessed
The most important step in phlebotomy is: b. Identifying the patient
a. Cleansing the site
b. Identifying the patient
c. Selecting the proper needle length
d. Using the correct evacuated tube
The venipuncture needle should be inserted into the arm b. Up and an angle of insertion less than 30 degrees
with the bevel facing:
a. Down and an angle of insertion between 15 and 30
degrees
b. Up and an angle of insertion less than 30 degrees
c. Down and an angle of insertion greater than 45
degrees
d. Up and an angle of insertion between 30 and 45
degrees
Failure to obtain blood by venipuncture may occur b. Tying the tourniquet too tightly
because of all of the following except:
a. Incorrect needle positioning
b. Tying the tourniquet too tightly
c. Inadequate vacuum in the tube
d. Collapsed vein
What is the recommended order of draw when the d. Blood culture, coagulation, nonadditive, and gel separator or other additives
evacuated tube system is used?
a. Gel separator, nonadditive, coagulation, and blood
culture
b. Additive, nonadditive, gel separator, and blood culture
c. Nonadditive, blood culture, coagulation, and other
additives
d. Blood culture, coagulation, nonadditive, and gel
separator or other additives
Which one of the following is an acceptable site for skin b. Lateral or medial plantar surface of the heel
puncture on infants:
a. Back curvature of the heel
b. Lateral or medial plantar surface of the heel
c. Plantar surface of the heel close to the arch of the foot
d. Middle of the plantar surface of the heel
An anticoagulant is an additive placed in evacuated c. Prevent the blood from clotting
tubes to:
a. Make the blood clot faster
b. Dilute the blood before testing
c. Prevent the blood from clotting
d. Ensure the sterility of the tube
Which one of the following is a reason for specimen c. Specimen in lavender stopper tube grossly hemolyzed
rejection:
a. Clot in a red stopper tube
b. Specimen collected for blood cortisol in the morning
c. Specimen in lavender stopper tube grossly hemolyzed
d. Room number is missing from the specimen tube label
