Phlebotomy Equipment and Supplies: Master the Essentials

Question 1

What is the primary purpose of a butterfly needle?

Accepted Answer

To facilitate blood collection from veins with poor visibility or difficult access

Answer

To infuse medications

Answer

To collect blood from arteries

Question 2

Which anticoagulant is used in EDTA tubes?

Accepted Answer

Ethylenediaminetetraacetic acid (EDTA)

Answer

Sodium citrate

Answer

Heparin

Question 3

Which type of tube is used to collect blood for coagulation studies?

Accepted Answer

Blue-top tube with sodium citrate

Answer

Red-top tube

Answer

Purple-top tube with EDTA

Question 4

What is the main function of a vacuum tube holder?

Accepted Answer

To secure and stabilize the vacuum tube during blood collection

Answer

To mix the blood sample

Answer

To prevent the tubes from rolling away

Answer

To dispose of contaminated tubes

Question 5

Which type of sharps container is used to dispose of used needles?

Accepted Answer

Red-colored container labeled 'Biohazard'

Answer

Yellow-colored container labeled 'Infectious Waste'

Answer

Blue-colored container labeled 'Recyclable'

Answer

Green-colored container labeled 'General Waste'

Question 6

What is the recommended storage temperature range for blood samples?

Accepted Answer

2-8 degrees Celsius

Answer

Room temperature

Answer

37 degrees Celsius

Answer

-20 degrees Celsius

Question 7

Which type of needle is typically used for routine blood collection?

Accepted Answer

Butterfly needle

Answer

Blunt-tipped needle

Answer

Hub needle

Answer

Trocar needle

Question 8

What is the primary purpose of applying a tourniquet during phlebotomy?

Accepted Answer

To increase venous pressure and facilitate blood flow

Answer

To prevent infection

Answer

To collect blood directly

Answer

To stabilize the patient's arm

Question 9

Which type of vacutainer tube is specifically designed for collecting blood samples for a complete blood count (CBC)?

Accepted Answer

Lavender-top (EDTA) tube

Answer

Light blue-top (sodium citrate) tube

Answer

Yellow-top (ACD) tube

Answer

Green-top (heparin) tube

Question 10

When inserting a needle into a vein during phlebotomy, what is the recommended angle of insertion?

Accepted Answer

15-30 degrees

Answer

Less than 15 degrees

Answer

90 degrees

Answer

45-60 degrees

Question 11

Which of the following is a potential complication that may arise from improper handling of equipment during phlebotomy?

Accepted Answer

Hematoma

Answer

Allergic reaction

Answer

Lightheadedness

Answer

Nausea

Question 12

In the event of a broken needle during phlebotomy, what are the appropriate steps to take?

Accepted Answer

Cap the needle, place it in a sharps container, and notify the supervisor immediately.

Answer

Leave the needle in place and call for assistance.

Answer

Remove the needle and discard it in the trash.

Question 13

Which supply is used to cleanse the puncture site after blood collection?

Accepted Answer

Alcohol swab

Answer

Butterfly closure

Answer

Bandage

Answer

Gauze

Question 14

Why is it essential to maintain equipment in good working order in a phlebotomy setting?

Accepted Answer

To ensure accurate and safe blood collection, prevent delays, and minimize the risk of equipment failure.

Answer

To comply with regulatory standards only

Answer

To reduce the workload of phlebotomists

Answer

To enhance the patient's comfort

Question 15

Which type of syringe is NOT commonly used in phlebotomy?

Accepted Answer

Insulin syringe

Answer

Tuberculin syringe

Answer

Luer-Lok syringe

Question 16

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

Accepted Answer

To securely hold and stabilize vacutainer tubes during blood collection, preventing spillage and ensuring proper mixing.

Answer

To prevent blood clots from forming

Answer

To facilitate the transportation of blood samples

Question 17

Which type of needle is specifically designed for blood collection from veins?

Accepted Answer

Butterfly needle

Answer

Syringe needle

Answer

Intravenous cannula

Answer

Scalpel needle

Question 18

What is the primary function of a tourniquet in phlebotomy?

Accepted Answer

To obstruct venous blood flow

Answer

To stimulate blood flow

Answer

To mark the puncture site

Answer

To disinfect the puncture site

Question 19

Which vacutainer tube is appropriate for collecting blood for coagulation studies?

Accepted Answer

Blue top (citrate)

Answer

Green top (lithium heparin)

Answer

Lavender top (EDTA)

Answer

Red top (no additive)

Question 20

Which essential component of a safety needle helps prevent accidental needle sticks?

Accepted Answer

Retractable shield

Answer

Sharpened tip

Answer

Lubricated surface

Question 21

What is the primary purpose of a vacutainer adapter?

Accepted Answer

To securely connect the vacutainer tube to the needle

Answer

To stabilize the tube during blood collection

Answer

To mix the blood with anticoagulants

Answer

To prevent blood leakage

Question 22

In adults, which vein is commonly preferred for venipuncture?

Accepted Answer

Median cubital vein

Answer

Radial vein

Answer

Jugular vein

Answer

Femoral vein

Question 23

Which of the following needle gauges has the largest diameter?

Accepted Answer

18G

Answer

25G

Answer

23G

Answer

21G

Question 24

What is the primary purpose of a tourniquet in phlebotomy?

Accepted Answer

To temporarily restrict blood flow, making veins easier to locate and access.

Answer

To prevent arterial blood flow.

Answer

To sterilize the venipuncture site.

Answer

To reduce pain during needle insertion.

Question 25

What is the primary function of the flange on a syringe?

Accepted Answer

Provides a secure grip for the user, aiding in injection or aspiration.

Answer

Indicates the volume of fluid in the syringe.

Answer

Connects the needle to the syringe barrel.

Question 26

Which of the following needles has the smallest gauge, indicating the largest bore diameter?

Accepted Answer

18 gauge

Answer

23 gauge

Answer

21 gauge

Question 27

What is the primary function of a tourniquet in phlebotomy?

Accepted Answer

To make veins more prominent and easier to palpate.

Answer

To prevent arterial blood flow.

Answer

To sterilize the venipuncture site.

Question 28

Which of the following tubes is MOST suitable for a complete blood count (CBC) test?

Accepted Answer

Lavender-topped tube

Answer

Light blue-topped tube

Answer

Red-topped tube

Answer

Green-topped tube

Question 29

What is the recommended order of draw when collecting blood using an evacuated tube system?

Accepted Answer

Blood cultures, coagulation tube, serum tube, heparin tube, EDTA tube, fluoride tube

Answer

Serum tube, heparin tube, EDTA tube, fluoride tube, blood cultures, coagulation tube

Answer

EDTA tube, heparin tube, fluoride tube, blood cultures, coagulation tube, serum tube

Question 30

A patient experiences syncope during a blood draw. What is the MOST appropriate immediate action?

Accepted Answer

Remove the needle and tourniquet, and lower the patient's head.

Answer

Apply a cold compress to the patient's forehead.

Answer

Offer the patient a glass of water.

Question 31

Which of the following is the primary antiseptic agent used for routine venipuncture?

Accepted Answer

70% isopropyl alcohol

Answer

Chlorhexidine gluconate

Answer

Hydrogen peroxide

Answer

Povidone-iodine

Question 32

What is the purpose of the rubber sleeve covering the needle on an evacuated tube system?

Accepted Answer

To prevent blood from leaking out of the tube holder after collection.

Answer

To cushion the needle insertion.

Answer

To provide a better grip for the phlebotomist.

Question 33

Which type of syringe is MOST commonly used for venipuncture?

Accepted Answer

10 mL syringe

Answer

20 mL syringe

Answer

5 mL syringe

Answer

1 mL syringe

Question 34

What is the recommended angle of needle insertion for venipuncture?

Accepted Answer

15-30 degrees

Answer

5-10 degrees

Answer

45-60 degrees

Question 35

After use, needles and other sharps should be disposed of in:

Accepted Answer

A puncture-resistant sharps container

Answer

A biohazard bag

Answer

A red bag for infectious waste

Answer

A regular trash can