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WorksheetsPCT Phlebotomy Worksheet Questions Chapter 25 Reading & PPT
Total questions: 60
Worksheet time: 1hrs 6mins
Short Answer: What is the purpose of phlebotomy?
Short Answer: Name at least 5 supplies needed to perform a venipuncture.
Short Answer: Briefly describe the evacuated tube procedure.
True/False: The most common patient complication after venipuncture is hematoma formation.
True
False
True/False: The PCT should apply labels to the tubes before the blood is drawn.
True
False
Multiple Choice: How many inches above the elbow/antecubital area should you apply the tourniquet?
1–2 inches
2–3 inches
3–4 inches
0–1 inches
Multiple Choice: Why should you advise the patient not to “pump” their fist?
It may cause a temporary increase in potassium and ionized calcium
It may cause the vein to rupture
It may cause a temporary decrease in potassium and ionized calcium
It may cause excessive bleeding
Multiple Choice: When using a hand vein for a venipuncture, what angle should you insert the needle?
30-degree angle
10-degree angle
20-degree angle
15-degree angle
Multiple Choice: What is the result of not inverting the vacutainer tubes after collecting blood?
It causes hemodilution
It causes lysis of red blood cells
It has no effect on the specimen
It can cause clot formation
Multiple Choice: Which vein should you avoid when performing a venipuncture to prevent possible nerve damage?
Cephalic vein
Median cubital vein
Saphenous vein
Basilic vein
Multiple Choice: Which is the only blood collection tube that does not contain additives?
Yellow
Blue
Red
Green
Multiple Choice: Which is the only blood collection tube that does not contain additives?
Yellow
Blue
Red
Green
Multiple Choice: How many times should the PCT invert a blood culture tube?
5 times
8 times
10 times
Do not invert
Multiple Choice: How many times should the light blue tube be inverted?
3–4 times
5–6 times
1–2 times
2–3 times
Multiple Choice: How many times should the red tube be inverted?
2 times
4 times
5 times
6 times
Multiple Choice: Which tubes should be inverted 10 times?
Green, lavender, gray
Green, lavender, pink
Pink, light blue, and yellow/blood culture bottle
All tubes should be inverted 10 times
Multiple Choice: Which tube would be used to collect to type and cross match a patient for a blood transfusion?
Pink
Light blue
Green
Orange
Multiple Choice: Which tube is used for “chemistries”?
Gray
Yellow
Red
Green
Multiple Choice: Which tube is used for a “STAT” chemistry?
Red
Orange
Light blue
Gray
Short Answer: Name 3 problems/complications associated with venipuncture.
What is “iatrogenic” anemia?
Anemia caused by inherited hemoglobin defects
Anemia resulting from excessive blood loss due to medical or phlebotomy procedures
Anemia due to iron-poor diet
Anemia from chronic kidney disease
In which instances is an area not an appropriate site for venipuncture.
Sites with infection or skin lesions
An arm with an active IV infusion
The side of a recent mastectomy without physician approval
Extensive edema or scarring at the site
Unshaven but otherwise healthy skin
Which is an example of when a doctor would order a blood culture?
During evaluation of suspected sepsis with fever and chills
When monitoring chronic hyperlipidemia
Before a routine blood donation
To confirm a normal complete blood count
True/False — Indicate whether the statement is true or false: The collection of forensic evidence does not require special training.
True
False
Multiple Choice — Identify the choice that best completes the statement or answers the question: What is the U.S. legal limit for BAC?
0.05 or 50 mg/dl
0.08 or 80 mg/dl
0.07 or 70 mg/dl
0.09 or 90 mg/dl
Completion — Complete each statement: Drug testing can detect marijuana within how many week(s) of use?
1 week
2 weeks
3 weeks
4 weeks
Completion — Complete each statement: Cocaine and heroin can be detected within how many day(s) of use?
1 day
2 days
3 days
5 days
Completion — Complete each statement: Neonatal drug testing is done within how many hour(s) to detect drug use?
12 hours
24 hours
36 hours
48 hours
Short Answer — What does the phrase “chain of custody” mean as it pertains to phlebotomy?
Select all that apply: Give an example of when “on the job” drug screening is required.
Pre-employment screening before starting a job
Random screening during employment
Post-accident screening after a workplace incident
Before a company social event with no safety implications
(Choose the best reason:) Why would the PCT not use alcohol pads to collect a specimen to determine BAC (blood alcohol content)?
Alcohol from the pad could contaminate the site and produce a falsely elevated BAC
Alcohol pads decrease patient discomfort but do not affect BAC
Alcohol pads sterilize too effectively, lowering measured BAC
Alcohol pads react with glass collection tubes and cause hemolysis only
After what age can a fingerstick be performed for collection of blood glucose levels?
Identify the choice that best completes the statement or answers the question. What is the most common complication associated with venipuncture?
hematoma
fainting
nerve damage
none of the above
Identify the choice that best completes the statement or answers the question. What is the MOST COMMON reason for venipuncture specimen recollection?
insufficient quantity
broken tube
unlabeled specimen
hemolysis
Identify the choice that best completes the statement or answers the question. What is the maximum volume allowable for blood collection of an infant weighing 8–10 pounds?
5 ml
3.5 ml
2 ml
10 ml
Identify the choice that best completes the statement or answers the question. What is the maximum volume allowable for blood drawn from a child weighing 66–80 pounds?
20 ml
15 ml
30 ml
10 ml
Identify the choice that best completes the statement or answers the question. How long should the PCT apply a heel warmer on an infant prior to performing a heel stick?
3–5 minutes
1–2 minutes
3 minutes
10 minutes
Identify the choice that best completes the statement or answers the question. What volume can a “microtainer” hold?
1.5 ml
0.75 ml
0.5 ml
0.25 ml
Identify the choice that best completes the statement or answers the question. How many days after birth is a PKU test performed?
2 days
3 days
10 days
5 days
Complete each statement. The PCT should limit him/herself to _____ venipuncture attempts.
one
two
three
four
Short Answer (converted to multiple choice). How would you manage a patient who experiences a seizure during a venipuncture?
Remove the tourniquet and needle immediately, activate safety, protect the patient from injury, and call for assistance.
Hold the needle in place until the seizure resolves so the specimen is not lost, then finish the draw.
Restrain the patient’s arms and proceed quickly to complete the blood draw.
Insert a second needle to obtain remaining tubes while another staff member restrains the patient.
How would you manage a patient who experiences nausea during a venipuncture?
Stop the draw, provide an emesis basin, position for safety, and reassess before continuing.
Tighten the tourniquet and draw faster to finish before the patient vomits.
Give the patient a glass of water and continue without interruption.
Ask the patient to stand up to relieve nausea and proceed with the draw.
Why would you NOT choose a venipuncture site with an I.V. located on the same extremity?
IV fluids can dilute or contaminate the specimen and produce inaccurate results.
The needle cannot physically enter a vein on the same limb as an IV.
Tourniquets are prohibited on limbs with IVs by federal law.
It increases the risk of lipemia in the sample rather than hemolysis.
Select all reasons you would avoid a site for venipuncture.
edema or swelling at the site
a hematoma is present
extensive scarring or burns
signs of infection at the site
a healthy median cubital vein with intact skin
What does the term “hemolysis” mean?
rupture of red blood cells with release of hemoglobin
clot formation that stops blood flow
dilution of blood by IV fluids
excess lipids causing a milky specimen
Name instances that warrant blood collected by capillary puncture. Select all that apply.
newborn screening or neonatal testing
point-of-care glucose monitoring
patients with fragile or inaccessible veins
when large-volume coagulation studies are ordered
when only a small specimen volume is required
Removing large amounts of blood from an infant may result in _______.
iatrogenic anemia
polycythemia
dehydration
hyperglycemia
Explain why povidone/iodine is not used when performing a dermal puncture.
It can contaminate capillary blood and falsely elevate analytes such as potassium.
It dries too quickly and does not disinfect the skin adequately.
It increases blood flow and can cause excessive bleeding.
It permanently stains filter paper used for PKU cards.
Briefly describe the procedure for an infant heel stick. Which option best reflects recommended practice?
Warm the heel 3–5 minutes, cleanse with alcohol, puncture the lateral or medial plantar surface, wipe away the first drop, and collect the specimen.
Cleanse with povidone-iodine, puncture the center of the heel, collect the first drop of blood immediately, and apply a cold compress.
Do not warm the heel; puncture any convenient area and squeeze firmly to obtain blood; collect every drop on the card.
Apply a tourniquet to the ankle, puncture the arch of the foot, and collect blood without wiping the first drop.
In which order would you collect these tubes?
Gray
5
Blood Culture
1
Green
3
Lavender
4
Red
2
What is the additive for the light blue top?
What is the additive for the red top?
What is the additive for the orange top?
What is the additive for the green top?
What is the additive in the lavender top?
What is the additive in the pink top?
What is the additive in the gray top?
What does the acronym EDTA stand for and what is its purpose?
Which tube is used for collection of coagulation studies?
orange
pink
green
light blue
Which tube is used to collect a blood specimen for whole blood hematology?
Lavender
gray
pink
light blue
