Specimen Collection Procedures: Master the Art of Blood Collection

Question 1

Which of the following is not a recognized method of specimen collection?

Accepted Answer

Tendon puncture

Answer

Skin puncture

Answer

Venipuncture

Answer

Capillary puncture

Question 2

Which vein is generally preferred for venipuncture due to its size and accessibility?

Accepted Answer

Median cubital vein

Answer

Radial vein

Answer

Ulnar vein

Answer

Femoral vein

Question 3

What is the primary purpose of utilizing an antiseptic wipe before specimen collection?

Accepted Answer

To minimize the risk of infection by eliminating contaminants from the puncture site

Answer

To reduce discomfort

Answer

To prevent hematoma formation

Answer

To improve vein visibility

Question 4

When collecting a blood sample using a capillary tube, how should it be held?

Accepted Answer

Parallel to the fingertip, gently touching the puncture site

Answer

Perpendicular to the fingertip, touching the puncture site

Answer

Parallel to the fingertip, not touching the puncture site

Question 5

What is a primary indication for using a butterfly needle?

Accepted Answer

To collect blood from patients with small or fragile veins, such as children or the elderly

Answer

To collect large volumes of blood

Answer

To minimize pain during venipuncture

Question 6

Which of the following conditions is NOT considered a contraindication for venipuncture?

Accepted Answer

Mild bruising at the puncture site

Answer

Thrombocytopenia

Answer

Hemophilia

Answer

Active infection at the puncture site

Question 7

In adults, the preferred venipuncture site is the:

Accepted Answer

Antecubital vein

Answer

Dorsal venous arch

Answer

Jugular vein

Answer

Femoral vein

Question 8

Which of the following is not a suitable site for venipuncture?

Accepted Answer

Artery

Answer

Cephalic vein

Answer

Radial vein

Answer

Antebrachial vein

Question 9

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

Accepted Answer

To increase venous pressure

Answer

To reduce pain

Answer

To sterilize the puncture site

Answer

To prevent bleeding

Question 10

Which practice should be avoided when performing skin puncture?

Accepted Answer

Pumping the puncture site

Answer

Applying a bandage after puncture

Answer

Using a new lancet for each puncture

Answer

Cleaning the site with alcohol

Question 11

When collecting blood for blood cultures, which type of vacutainer should be used?

Accepted Answer

Vacutainer with antimicrobial agent

Answer

Heparin vacutainer

Answer

Serum vacutainer

Answer

EDTA vacutainer

Question 12

Most blood specimens should be stored at a temperature of:

Accepted Answer

2-8 degrees Celsius

Answer

Room temperature

Answer

-20 degrees Celsius

Answer

37 degrees Celsius

Question 13

Which of the following indicates a successful venipuncture?

Accepted Answer

Blood flowing freely into the vacutainer

Answer

Swelling around the puncture site

Answer

No blood return

Answer

Pain at the puncture site

Question 14

What is the correct order of steps in a venipuncture procedure?

Accepted Answer

Apply the tourniquet, clean the puncture site, insert the needle, collect the blood

Answer

Insert the needle, apply the tourniquet, clean the puncture site, collect the blood

Answer

Clean the puncture site, insert the needle, collect the blood, apply the tourniquet

Question 15

Which of the following is a possible complication of venipuncture?

Accepted Answer

Hematoma

Answer

Asthma

Answer

Epilepsy

Answer

Anaphylaxis

Question 16

What is the purpose of using a butterfly needle in blood collection?

Accepted Answer

To reduce patient discomfort and facilitate blood flow in difficult veins

Answer

To increase the volume of blood collected

Answer

To prevent needle sticks

Question 17

Which action should be avoided when performing a skin puncture?

Accepted Answer

Inserting the lancet too deeply

Answer

Using a new lancet

Answer

Applying gentle pressure after the puncture

Answer

Cleaning the puncture site

Question 18

What is the best practice for labeling blood specimens?

Accepted Answer

Use a waterproof label and include the patient's name, date, and time of collection

Answer

Use a pencil to write directly on the specimen tube

Answer

Label the specimen after it is transported to the laboratory

Question 19

Identify the blood collection method that is NOT commonly performed.

Accepted Answer

Arterial puncture

Answer

Skin puncture

Answer

Venipuncture

Answer

Capillary puncture

Question 20

When using a tourniquet for venipuncture, where should it be positioned?

Accepted Answer

Proximal to the venipuncture site

Answer

Above the elbow

Answer

On the opposite arm

Answer

Distal to the venipuncture site

Question 21

What is the primary purpose of skin punctures in blood collection?

Accepted Answer

To collect small volumes of blood

Answer

To measure blood pressure

Answer

To administer medication

Question 22

Which quality control measure is essential in ensuring accurate blood collection?

Accepted Answer

Using reference standards

Answer

Relying on previous experience

Answer

Performing blind tests

Answer

Guessing the results

Question 23

During venipuncture, which vein is generally the preferred site in adult patients?

Accepted Answer

Median cubital vein

Answer

Cephalic vein

Answer

Dorsal hand vein

Answer

Femoral vein

Question 24

When performing venipuncture, what is the optimal angle for inserting the needle into the vein?

Accepted Answer

15-30 degrees

Answer

45-60 degrees

Answer

0-15 degrees

Answer

30-45 degrees

Question 25

Prior to blood collection, what is the primary purpose of cleaning the puncture site?

Accepted Answer

Remove dirt and potential contaminants

Answer

Prevent clotting

Answer

Dilate blood vessels

Answer

Anesthetize the area

Question 26

When interacting with a patient who exhibits anxiety during blood collection, what is the most appropriate response?

Accepted Answer

Reassure and calm the patient

Answer

Tell them to be quiet

Answer

Restraint the patient if necessary

Answer

Ignore their concerns

Question 27

When selecting a venipuncture site on an infant, the recommended location is the:

Accepted Answer

Heel

Answer

Cephalic vein

Answer

Antecubital vein

Answer

Finger

Question 28

During a capillary puncture, the skin should be punctured at a:

Accepted Answer

45-degree angle

Answer

90-degree angle

Answer

25-degree angle

Question 29

In the event of a vasovagal response during blood collection, the appropriate action is to:

Accepted Answer

Lower the patient's head and elevate their legs

Answer

Administer glucose

Answer

Stop the blood collection and call for medical assistance

Answer

Apply a tourniquet to the arm

Question 30

For collecting a urine specimen for culture, the appropriate container is a:

Accepted Answer

Sterile screw-cap container

Answer

Boric acid container

Answer

Hemoccult slide

Answer

Open urine cup

Question 31

The primary purpose of adhering to aseptic technique when collecting blood specimens is to:

Accepted Answer

Prevent specimen contamination

Answer

Ensure accurate test results

Answer

Prevent needle sticks

Answer

Reduce patient discomfort

Question 32

For successful blood draw using venipuncture, what is the recommended angle of needle insertion?

Accepted Answer

15-30 degrees

Answer

45-60 degrees

Answer

5-10 degrees

Answer

90 degrees

Question 33

When selecting a vein for venipuncture, which vein is generally the preferred first choice?

Accepted Answer

Median cubital vein

Answer

Cephalic vein

Answer

Basilic vein

Answer

Radial vein

Question 34

For capillary puncture on an infant, what is the preferred puncture site?

Accepted Answer

Lateral or medial plantar heel surface

Answer

Fingertip

Answer

Earlobe

Answer

Antecubital fossa

Question 35

In a lavender-topped blood collection tube, what is the primary function of the additive EDTA?

Accepted Answer

Prevents clotting by binding calcium

Answer

Promotes clotting for serum separation

Answer

Preserves glucose levels in the sample

Answer

Inhibits bacterial growth in the sample

Question 36

To avoid cross-contamination of additives, what is the correct order of draw for lavender, light blue, and red top tubes?

Accepted Answer

Light blue, red, lavender

Answer

Lavender, light blue, red

Answer

Red, lavender, light blue

Question 37

Which action during blood collection can cause hemolysis, damaging blood cells?

Accepted Answer

Using a needle with too small a gauge

Answer

Gently inverting the collection tube

Answer

Allowing the alcohol to dry completely before puncture

Answer

Using a properly tied tourniquet

Question 38

After a needle stick injury, what is the immediate action a phlebotomist should take?

Accepted Answer

Immediately wash the area with soap and water

Answer

Seek medical attention

Answer

Complete an incident report

Answer

Report the incident to a supervisor

Question 39

In the sequence of steps for venipuncture, what is the initial and essential step?

Accepted Answer

Patient identification and verification

Answer

Preparing the puncture site

Answer

Selecting the appropriate vein

Question 40

When performing a capillary puncture on a finger, the puncture should be made at an angle of:

Accepted Answer

45 degrees

Answer

60 degrees

Answer

90 degrees

Answer

30 degrees

Question 41

Which of the following is NOT considered a contraindication for venipuncture?

Accepted Answer

Bruising at the puncture site

Answer

Patient refusal

Answer

Hemophilia

Answer

Infection at the puncture site

Question 42

If a patient faints during a blood draw, the phlebotomist should immediately:

Accepted Answer

Stop the procedure, lower the patient's head, and elevate their legs

Answer

Give the patient something to drink

Answer

Ignore the fainting episode and continue the blood draw

Answer

Help the patient sit upright quickly

Question 43

Which of the following is a common complication that can occur during venipuncture?

Accepted Answer

Hemolysis

Answer

Brachycardia

Answer

Hypoglycemia

Answer

Hypertension

Question 44

What are the key legal and ethical responsibilities of a phlebotomist?

Accepted Answer

Obtaining informed consent, ensuring patient safety, and maintaining patient confidentiality

Answer

Disclosing patient information to unauthorized individuals

Answer

Prescribing medications to patients

Answer

Diagnosing medical conditions based on bloodwork

Question 45

What is the most preferred site for venipuncture in adult patients?

Accepted Answer

Median cubital vein

Answer

Radial artery

Answer

Cephalic vein

Answer

Basilic vein

Question 46

How should a patient with a history of difficult veins be positioned for venipuncture?

Accepted Answer

Lying down (supine)

Answer

Sitting upright

Answer

Lying on their stomach (prone)

Answer

Standing

Question 47

Select the option that lists the correct order of steps for performing venipuncture:

Accepted Answer

Prepare the site, anchor the vein, insert the needle, collect the blood, remove the needle, apply pressure

Answer

Prepare the site, insert the needle, anchor the vein, apply pressure, collect blood, remove the needle

Answer

Anchor the vein, prepare the site, insert the needle, collect the blood, apply pressure, remove the needle

Answer

Insert the needle, prepare the site, anchor the vein, collect the blood, remove the needle, apply pressure

Question 48

Butterfly needles are NOT typically used for:

Accepted Answer

Collecting large volumes of blood

Answer

Accessing small or fragile veins

Answer

Venipuncture on patients who are difficult to restrain

Answer

Pediatric blood draws

Question 49

What is the correct sequence for collecting a capillary blood specimen?

Accepted Answer

Warm the site, cleanse the site, puncture the skin, collect the blood, apply pressure

Answer

Puncture the skin, cleanse the site, warm the site, collect the blood, apply pressure

Answer

Cleanse the site, warm the site, puncture the skin, collect the blood, apply pressure

Answer

Cleanse the site, puncture the skin, warm the site, collect the blood, apply pressure

Question 50

What is the correct order of draw for multiple blood collection tubes?

Accepted Answer

Blood culture bottles, light blue, red, green, lavender, gray

Answer

Light blue, red, green, lavender, gray, blood culture bottles

Answer

Blood culture bottles, red, light blue, green, lavender, gray

Answer

Red, light blue, green, lavender, gray, blood culture bottles

Question 51

What is the primary function of an anticoagulant in a blood collection tube?

Accepted Answer

To prevent blood from clotting

Answer

To separate serum from whole blood

Answer

To preserve blood cells for analysis

Answer

To accelerate the clotting process

Question 52

What is the most important factor to consider when choosing a needle gauge for venipuncture?

Accepted Answer

The size and condition of the patient's vein

Answer

The type of blood test being performed

Answer

The volume of blood being collected

Answer

The patient's age

Question 53

What is the correct procedure for disposing of a contaminated needle?

Accepted Answer

Place the needle in a sharps container immediately after use

Answer

Break the needle before placing it in the sharps container

Answer

Recap the needle before placing it in the sharps container

Question 54

What is the most important step to take when a patient experiences syncope during venipuncture?

Accepted Answer

Remove the needle and apply pressure to the site

Answer

Call 911

Answer

Administer CPR

Answer

Continue with the venipuncture