Phlebotomy Equipment and Supplies: Essential Tools for Blood Collection

Question 1

Which type of tube is used to collect blood for a Complete Blood Count (CBC) test?

Accepted Answer

Vacutainer tube with lavender-top

Answer

Blood culture tube

Answer

Syringe with a needle

Answer

Capillary tube

Question 2

When a patient declines consent for a blood draw, what is the appropriate action for the phlebotomist?

Accepted Answer

Document the patient's refusal and notify the physician.

Answer

Attempt to persuade the patient to consent by emphasizing the significance of the blood draw.

Answer

Proceed with the blood draw despite the patient's refusal.

Answer

Summon security to assist in restraining the patient.

Question 3

How do quality control procedures contribute to the accuracy and reliability of lab results in phlebotomy?

Accepted Answer

They detect and fix errors, ensuring accurate results.

Answer

They're only needed for complex tests.

Answer

They're a waste of time.

Answer

They're only the lab's responsibility.

Question 4

Which blood collection method, vacuum-assisted or syringe-based, offers greater patient comfort?

Accepted Answer

Vacuum-assisted blood collection is less painful for patients.

Answer

Syringe-based blood collection is more efficient.

Answer

Vacuum-assisted blood collection is less safe.

Answer

Syringe-based blood collection is more comfortable for patients.

Question 5

Why is it essential to regularly maintain and calibrate phlebotomy equipment? Explain the potential consequences of neglecting these procedures.

Accepted Answer

Accurate and reliable laboratory results, preventing misdiagnosis and inappropriate treatment.

Accepted Answer

Equipment breakdowns, testing delays, and increased healthcare costs.

Answer

Only necessary for complex equipment like analyzers and centrifuges.

Answer

Only necessary if equipment is visibly damaged or malfunctioning.

Question 6

How can you manage patient anxiety during phlebotomy procedures using verbal and non-verbal communication techniques?

Accepted Answer

Use calming words, make eye contact, and show empathy while explaining the procedure

Answer

Ignore the patient's anxiety and finish the procedure quickly

Answer

Use medical terms and avoid explaining the procedure

Question 7

Why is it crucial to use the correct specimen containers for laboratory tests?

Accepted Answer

Improper containers can alter the specimen, leading to inaccurate results and potential misdiagnosis.

Answer

Incorrect containers have no impact on test results as long as the specimen is intact.

Answer

Specific containers are only needed for specialized tests, not routine tests.

Answer

Using improper containers has minor consequences, but accurate results still depend on container requirements.

Question 8

In phlebotomy, which ethical consideration is crucial?

Accepted Answer

Acquiring patient consent

Answer

Employing sterile tools

Answer

Wearing protective gear

Question 9

Which component is NOT part of a vacutainer system used in phlebotomy?

Accepted Answer

Syringe

Answer

Evacuated tube

Answer

Holder

Question 10

Why is effective communication and collaboration between phlebotomists and laboratory staff crucial?

Accepted Answer

It ensures accurate patient identification and test results, enhancing patient safety.

Answer

Phlebotomists and laboratory staff operate independently and don't need to share patient information.

Answer

Effective communication and collaboration only impact laboratory efficiency, not patient care.

Answer

Laboratory staff handle all aspects of patient care, including communication with phlebotomists.

Question 11

What is the main purpose of a blood collection tube holder?

Accepted Answer

To hold blood collection tubes securely

Answer

To prevent needle sticks

Answer

To mix blood samples

Answer

To dispose of sharps

Question 12

Which of the following is NOT used during venipuncture?

Accepted Answer

Centrifuge

Answer

Tourniquet

Answer

Alcohol swabs

Question 13

When collecting a blood sample from an infant, which technique is most appropriate?

Accepted Answer

Heel prick

Answer

Venipuncture

Answer

Finger stick

Answer

Arterial puncture

Question 14

What is a potential disadvantage of using automated blood collection systems in phlebotomy?

Accepted Answer

Increased risk of contamination and cross-contamination

Answer

Increased efficiency and reduced labor costs

Answer

Elimination of human error during sample handling

Answer

Higher costs compared to manual blood collection methods

Question 15

In phlebotomy, how should contaminated supplies be disposed of to prioritize safety and ethical considerations?

Accepted Answer

Sharps and needles in a sharps container, other supplies in a biohazard waste container

Answer

Sharps and needles in a sharps container, other supplies in a regular trash can

Answer

All supplies in a sharps container

Answer

All supplies in a regular trash can

Question 16

In phlebotomy, which supply is used to hold blood samples collected during a venipuncture?

Accepted Answer

Tube

Answer

Needle

Answer

Tourniquet

Question 17

In phlebotomy, when selecting a blood collection tube, what factor is paramount in determining the appropriate draw volume?

Accepted Answer

Type of test being performed

Answer

Patient's age and weight

Answer

Size of the needle used

Answer

Skill of the phlebotomist

Question 18

In venipuncture, which factor is most important when choosing a needle?

Accepted Answer

Patient's vein size

Answer

Type of blood sample

Answer

Patient's age and gender

Question 19

How does a vacuum-assisted blood collection system use negative pressure to draw blood?

Accepted Answer

Negative pressure in the blood collection tube draws blood in.

Answer

A pump actively removes blood from the vein, creating a vacuum.

Answer

Gravity pulls blood into the collection tube, creating a vacuum.

Answer

Muscle contractions create a vacuum by pushing blood into the collection tube.

Question 20

When choosing a blood collection tube for a lab test, what's the most important thing to keep in mind?

Accepted Answer

The type of test being ordered

Answer

The patient's age

Answer

The patient's gender

Answer

The time of day

Question 21

What is the primary function of an evacuated blood collection tube?

Accepted Answer

To create a vacuum for efficient and safe blood collection

Answer

To prevent blood coagulation during storage

Answer

To separate blood components for specialized analysis

Answer

To store blood samples for extended periods

Question 22

How should a tourniquet be applied during venipuncture?

Accepted Answer

Proximal to the venipuncture site, approximately 3-4 inches above the needle insertion point

Answer

Distal to the venipuncture site, just below the elbow crease

Answer

Tight enough to completely stop blood flow

Answer

Loose enough to allow for some blood flow

Question 23

Which of the following is NOT a component of a needle assembly used in phlebotomy?

Accepted Answer

Sharps container

Answer

Needle

Answer

Holder

Answer

Wing

Question 24

What is the recommended protocol for the safe disposal of used needles?

Accepted Answer

Immediately discard used needles into a designated sharps container

Answer

Rinse used needles thoroughly before disposal in regular trash

Answer

Recap needles before disposal in a sharps container

Answer

Bend needles before discarding in a sharps container

Question 25

What is the primary purpose of using a butterfly needle in phlebotomy?

Accepted Answer

To collect blood from small or fragile veins, especially in infants and the elderly

Answer

To administer intravenous fluids and medications

Answer

To collect blood cultures for diagnostic testing

Answer

To donate blood for transfusions

Question 26

What's the primary purpose of using an alcohol swab in phlebotomy?

Accepted Answer

Clean the puncture site to prevent contamination

Answer

Dilate the vein for easier puncture

Answer

Numb the area to reduce pain

Answer

Reduce discomfort after the venipuncture

Question 27

What's the intended use of a butterfly needle?

Accepted Answer

Drawing blood from difficult veins

Answer

Preventing blood clots

Answer

Injecting medication intravenously

Answer

Collecting urine samples

Question 28

What's the name of the device designed to hold and transport blood tubes?

Accepted Answer

Tube rack

Answer

Specimen container

Answer

Centrifuge

Answer

Hemoglobinometer

Question 29

Which of the following is NOT recognized as a potential complication of phlebotomy?

Accepted Answer

Elevated blood pressure

Answer

Infection

Answer

Hematoma

Answer

Vasovagal reaction

Question 30

In case of an accidental needle stick with contaminated blood, what's the appropriate action?

Accepted Answer

Wash the wound and seek immediate medical attention

Answer

Cover the wound with a bandage

Answer

Apply pressure to the wound

Answer

Ignore the incident

Question 31

What's the recommended storage temperature for blood samples?

Accepted Answer

Refrigerated between 4-8 degrees Celsius

Answer

Room temperature

Answer

Frozen at -20 degrees Celsius

Answer

Heated at 37 degrees Celsius

Question 32

For a serum test, which type of blood collection tube is used?

Accepted Answer

Red top (no additive)

Answer

Green top (heparin)

Answer

Light blue top (citrate)

Answer

Lavender top (EDTA)

Question 33

During a blood draw, what is the primary function of a tourniquet?

Accepted Answer

To make the veins more visible by constricting blood flow

Answer

To prevent excessive bleeding לאחר needle removal

Answer

To disinfect the puncture site

Answer

To dilute the blood sample

Question 34

What is the primary purpose of a blood collection needle?

Accepted Answer

To puncture the vein and collect blood

Answer

To mix the blood sample with anticoagulant

Answer

To prevent infection during the procedure

Answer

To label the blood sample

Question 35

What is the recommended method for disposing of used blood collection needles?

Accepted Answer

Sharps container

Answer

Biohazard bag

Answer

Regular trash can

Answer

Sink

Question 36

In the event of a leaking blood collection tube, what is the appropriate action?

Accepted Answer

Discard the tube and collect a new sample

Answer

Seal the leak with tape

Answer

Centrifuge the tube to separate the leaking blood

Answer

Leave the tube as is and continue with the testing

Question 37

Which of the following is the most common cause of hematoma formation after a blood draw?

Accepted Answer

Applying excessive pressure to the puncture site after needle removal

Answer

Using a needle that is too small for the vein

Answer

Inserting the needle into the vein at an angle

Answer

Not applying a bandage after the procedure

Question 38

At what temperature should blood samples collected in EDTA tubes be stored?

Accepted Answer

2-8°C (36-46°F)

Answer

Room temperature

Answer

-20°C (-4°F)

Answer

37°C (98.6°F)

Question 39

Which type of needle is commonly used for venipuncture in phlebotomy?

Accepted Answer

Butterfly needle

Answer

Blunt-tipped needle

Answer

Luer-Lok needle

Answer

Spinal needle

Question 40

What is the primary purpose of using a tourniquet in phlebotomy?

Accepted Answer

To obstruct blood flow and enhance vein visibility

Answer

To dilate veins and increase blood pressure

Answer

To aspirate blood into the collection tube

Answer

To clean and disinfect the venipuncture site

Question 41

Which of the following is NOT a typical component of an evacuated blood collection tube?

Accepted Answer

Needle

Answer

Vacuum

Answer

Additive

Answer

Stopper

Question 42

What is the proper method for disposing of sharps in phlebotomy?

Accepted Answer

Placing them in a designated sharps container

Answer

Discarding them in a regular trash can

Answer

Putting them in a biohazard bag

Answer

Flushing them down the toilet

Question 43

During venipuncture, what is the recommended angle for needle insertion?

Accepted Answer

45-60 degrees

Answer

15-30 degrees

Answer

75-90 degrees

Answer

90-180 degrees

Question 44

What is the primary purpose of a lancet in phlebotomy?

Accepted Answer

To puncture the skin for capillary blood collection

Answer

To dilate veins for venipuncture

Answer

To aspirate blood from a vein

Answer

To hold the evacuated blood collection tube

Question 45

Which needle type is primarily designed for drawing venous blood samples, offering a secure and less painful experience?

Accepted Answer

Butterfly needle

Answer

Vacutainer needle

Answer

Angiocath

Answer

Blunt fill

Question 46

What is the primary purpose of utilizing a tourniquet during blood collection, and how does it contribute to the process?

Accepted Answer

To increase venous pressure, facilitating blood flow into the collection tube

Answer

To decrease venous pressure, preventing blood from pooling in the vein

Answer

To prevent clotting by constricting blood flow

Answer

To label the patient for identification purposes

Question 47

According to established safety protocols, what is the designated disposal method for used needles to minimize the risk of accidental needle sticks or infections?

Accepted Answer

Sharps container specifically designed for sharps disposal

Answer

Regular trash can

Answer

Biohazard bag for infectious waste

Answer

Recycling bin for general waste

Question 48

To minimize the likelihood of vein collapse during blood collection, which factor should be carefully considered and managed?

Accepted Answer

Applying a tourniquet that is too tight, restricting blood flow

Answer

Allowing the patient to move their arm freely during the procedure

Answer

Inserting the needle too deeply into the vein

Answer

Positioning the patient's arm in an awkward or uncomfortable position

Question 49

After an unsuccessful venipuncture, what is the recommended waiting period before attempting a second venipuncture on the same patient?

Accepted Answer

30 minutes, allowing for the vein to recover and reducing the risk of further trauma

Answer

1 hour, providing ample time for the patient to rest and regain composure

Answer

24 hours, ensuring sufficient time for the puncture site to heal and minimize discomfort

Answer

48 hours, allowing for complete recovery and reducing the likelihood of complications

Question 50

In the context of phlebotomy, which type of tube is specifically designed for collecting blood samples intended for complete blood counts (CBCs)?

Accepted Answer

EDTA tube

Answer

Sodium citrate tube

Answer

Serum separator tube

Answer

Heparin tube

Question 51

During a venipuncture procedure, where should a tourniquet be appropriately placed?

Accepted Answer

Approximately 3 inches proximal to the puncture site

Answer

Approximately 3 inches distal to the puncture site

Answer

Directly over the puncture site

Answer

No tourniquet is required

Question 52

When preparing to insert a butterfly needle into a patient's vein, which substance is typically used to fill the needle?

Accepted Answer

Saline solution

Answer

Heparin

Answer

Alcohol

Answer

Blood

Question 53

What is the primary purpose of a lancet in medical procedures?

Accepted Answer

Puncturing the skin to obtain capillary blood samples

Answer

Collecting blood from a vein

Answer

Disinfecting the injection site

Answer

Securing the needle during venipuncture

Question 54

Which piece of equipment is specifically employed to centrifuge blood samples?

Accepted Answer

Centrifuge

Answer

Biosafety cabinet

Answer

Hemoglobinometer

Answer

Microscope

Question 55

When disposing of used needles, which method is considered the safest and most appropriate?

Accepted Answer

Sharps container

Answer

Regular trash can

Answer

Sink disposal

Answer

Burial in soil

Question 56

During a venipuncture procedure, which of the following steps is NOT typically included?

Accepted Answer

Injecting contrast dye

Answer

Cleaning the puncture site

Answer

Applying a tourniquet

Answer

Inserting the needle into the vein

Question 57

Describe one significant advantage and one major disadvantage of using a butterfly needle for blood collection.

Accepted Answer

Advantage: Reduced pain due to smaller size; Disadvantage: Increased risk of hemolysis due to smaller bore.

Answer

Advantage: Faster blood flow due to larger bore; Disadvantage: More challenging to insert.

Answer

Advantage: Lower cost compared to other needle types; Disadvantage: Shorter lifespan.

Answer

Advantage: Easier handling due to wings; Disadvantage: Not suitable for all vein types.

Question 58

For blood draws from the antecubital fossa, which needle type is most commonly used?

Accepted Answer

Vacutainer needle

Answer

Butterfly needle

Answer

Blunt-tipped needle

Answer

Winged infusion set needle

Question 59

Which type of needle is most commonly used in phlebotomy to draw blood from a vein?

Accepted Answer

Butterfly needle

Answer

Blunt-tip needle

Answer

Coring needle

Question 60

Which type of needle is primarily used for drawing blood from a vein?

Accepted Answer

Butterfly needle

Answer

Blunt-tip needle

Answer

Winged infusion set

Answer

Catheter

Question 61

Which of the following is NOT a commonly used type of phlebotomy tube?

Accepted Answer

Syringe

Answer

EDTA tube

Answer

Serum tube

Answer

Heparin tube

Question 62

If a needle becomes clogged during phlebotomy, which troubleshooting step is most appropriate?

Accepted Answer

Change the needle

Answer

Aspirate and reinsert the needle

Answer

Increase the tourniquet pressure

Answer

Apply heat to the venipuncture site

Question 63

In phlebotomy, which anticoagulant is used specifically for blood tests that measure clotting factors?

Accepted Answer

Sodium Citrate

Answer

Heparin

Answer

EDTA

Answer

Oxalate

Question 64

In phlebotomy, what is the primary purpose of using a tourniquet?

Accepted Answer

To prevent backflow of blood

Answer

To dilate the vein

Answer

To stop bleeding

Answer

To disinfect the skin