NCPT Phlebotomy Study Guide 1 Latest
Updated
A micro-sample is generally collected from a 9-month old infant by ________.
a. finger stick
b. scalp stick
c. heel stick
d. venipuncture - ANS-c. heel stick
When performing venipuncture on a patient with small, fragile veins, the best solution is
to use a:
a. winged infusion set with syringe.
b. winged infusion set with evacuated tube.
c. smaller-sized needle with evacuated tube.
d. standard-sized needle with evacuated tube. - ANS-a. winged infusion set with
syringe.
Which of the following is NOT a cause of hemolysis?
a. Failing to air dry antiseptic
b. Using a larger-than-needed needle
c. Using a smaller-than-needed needle
d. Shaking tubes vigorously - ANS-b. Using a larger-than-needed needle
For which of the following tests must blood be drawn from an artery?
a. Anti-hemophilic factor
b. Chromosome analysis
c. Hemoglobin A1C
d. Blood gases - ANS-d. Blood gases
When collecting a sample of whole blood for testing using a lavender-capped
Microtainer, how many inversions are needed to mix the blood with the additive?
a. 6
b. 8
c. 10
d. 12 - ANS-c. 10
,Which of the following factors is likely to have the greatest effect on the results of a CBC
processed within 2 hours of collection of the sample?
a. Mealtime
b. Mild exercise
c. Environmental temperature
d. Dehydration - ANS-d. Dehydration
If the laboratory protocol calls for the use of chlorhexidine solution for skin antisepsis for
skin puncture or venipuncture, the antiseptic should NOT be used on infants younger
than ______.
a. 12 months
b. 6 months
c. 4 months
d. 2 months - ANS-d. 2 months
The maximum length of time a tourniquet should be left in place is ___________.
a. one minute
b. two minutes
c. three minutes
d. four minutes - ANS-a. one minute
If unable to locate an adequate venipuncture site with a tourniquet applied, how long
should the tourniquet be released before reapplying?
a. 30 seconds
b. one minute
c. two minutes
d. three minutes - ANS-c. two minutes
When drawing blood from a patient in isolation for infection with Clostridium difficile,
gloves should be donned __________.
a. after palpating the site
b. before entering the room
c. immediately before preparing the site
d. immediately after preparing the site - ANS-b. before entering the room
Which government agency is responsible for laws governing the use of gloves when
carrying out a venipuncture?
a. USDA
b. FDA
c. CDC
, d. OSHA - ANS-d. OSHA
If a blood specimen is to be obtained for the trough level of a drug, the best time to draw
the blood is usually_________.
a. 15 minutes before the next scheduled dose
b. 30 minutes before the next scheduled dose
c. 60 minutes before the next scheduled dose
d. 2 hours after the last scheduled dose - ANS-a. 15 minutes before the next scheduled
dose
The closure cap of the collection tube that contains sodium citrate is _________.
a. gray
b. lavender
c. green
d. light blue - ANS-d. light blue
If venipuncture is attempted and no blood returns when the evacuated tube is attached
but the needle appears to be in the vein, the initial response should be to __________.
a. consider an ankle vein
b. remove the needle
c. reposition the needle
d. change the evacuated tube - ANS-c. reposition the needle
If a patient had a right mastectomy 6 months ago, blood may be drawn from the
______.
a. left arm
b. left or right ankle
c. right arm - distal area only
d. left or right arm - ANS-a. left arm
When performing venipuncture on a patient with extensive burns, the phlebotomist
should ______.
a. pad the tourniquet area
b. avoid burned areas
c. use a winged infusion set
d. avoid using a tourniquet - ANS-b. avoid burned areas
If a patient is very angry and yells that the lab tests are a "waste of time," which of the
following is the best first response?
a. Stay calm and listen
b. Explain the purpose
Updated
A micro-sample is generally collected from a 9-month old infant by ________.
a. finger stick
b. scalp stick
c. heel stick
d. venipuncture - ANS-c. heel stick
When performing venipuncture on a patient with small, fragile veins, the best solution is
to use a:
a. winged infusion set with syringe.
b. winged infusion set with evacuated tube.
c. smaller-sized needle with evacuated tube.
d. standard-sized needle with evacuated tube. - ANS-a. winged infusion set with
syringe.
Which of the following is NOT a cause of hemolysis?
a. Failing to air dry antiseptic
b. Using a larger-than-needed needle
c. Using a smaller-than-needed needle
d. Shaking tubes vigorously - ANS-b. Using a larger-than-needed needle
For which of the following tests must blood be drawn from an artery?
a. Anti-hemophilic factor
b. Chromosome analysis
c. Hemoglobin A1C
d. Blood gases - ANS-d. Blood gases
When collecting a sample of whole blood for testing using a lavender-capped
Microtainer, how many inversions are needed to mix the blood with the additive?
a. 6
b. 8
c. 10
d. 12 - ANS-c. 10
,Which of the following factors is likely to have the greatest effect on the results of a CBC
processed within 2 hours of collection of the sample?
a. Mealtime
b. Mild exercise
c. Environmental temperature
d. Dehydration - ANS-d. Dehydration
If the laboratory protocol calls for the use of chlorhexidine solution for skin antisepsis for
skin puncture or venipuncture, the antiseptic should NOT be used on infants younger
than ______.
a. 12 months
b. 6 months
c. 4 months
d. 2 months - ANS-d. 2 months
The maximum length of time a tourniquet should be left in place is ___________.
a. one minute
b. two minutes
c. three minutes
d. four minutes - ANS-a. one minute
If unable to locate an adequate venipuncture site with a tourniquet applied, how long
should the tourniquet be released before reapplying?
a. 30 seconds
b. one minute
c. two minutes
d. three minutes - ANS-c. two minutes
When drawing blood from a patient in isolation for infection with Clostridium difficile,
gloves should be donned __________.
a. after palpating the site
b. before entering the room
c. immediately before preparing the site
d. immediately after preparing the site - ANS-b. before entering the room
Which government agency is responsible for laws governing the use of gloves when
carrying out a venipuncture?
a. USDA
b. FDA
c. CDC
, d. OSHA - ANS-d. OSHA
If a blood specimen is to be obtained for the trough level of a drug, the best time to draw
the blood is usually_________.
a. 15 minutes before the next scheduled dose
b. 30 minutes before the next scheduled dose
c. 60 minutes before the next scheduled dose
d. 2 hours after the last scheduled dose - ANS-a. 15 minutes before the next scheduled
dose
The closure cap of the collection tube that contains sodium citrate is _________.
a. gray
b. lavender
c. green
d. light blue - ANS-d. light blue
If venipuncture is attempted and no blood returns when the evacuated tube is attached
but the needle appears to be in the vein, the initial response should be to __________.
a. consider an ankle vein
b. remove the needle
c. reposition the needle
d. change the evacuated tube - ANS-c. reposition the needle
If a patient had a right mastectomy 6 months ago, blood may be drawn from the
______.
a. left arm
b. left or right ankle
c. right arm - distal area only
d. left or right arm - ANS-a. left arm
When performing venipuncture on a patient with extensive burns, the phlebotomist
should ______.
a. pad the tourniquet area
b. avoid burned areas
c. use a winged infusion set
d. avoid using a tourniquet - ANS-b. avoid burned areas
If a patient is very angry and yells that the lab tests are a "waste of time," which of the
following is the best first response?
a. Stay calm and listen
b. Explain the purpose
