Question 1

How far from the puncture site should the tourniquet be placed?&#10;A) 1 to 2 inches below the puncture site&#10;B) 1 to 2 inches above the puncture site&#10;C) 3 to 4 inches above the puncture site&#10;D) 5 to 6 inches above the puncture site

Accepted Answer

The tourniquet should be placed 3 to 4 inches above the puncture site to adequately restrict venous blood flow and make the veins more prominent for venipuncture.

Question 2

What does a vein feel like upon palpation?&#10;A) It has a palpable pulse.&#10;B) It is a rigid cord.&#10;C) It feels spongy and firm.&#10;D) It feels hard and lumpy.

Accepted Answer

Veins feel spongy and firm upon palpation because they are flexible vessels that can be compressed and then return to their original shape, unlike arteries which have a palpable pulse due to the pressure of blood being pumped by the heart.

Question 3

When you tell a patient that you need to draw blood, he says that he does not want to have his blood drawn. What is the appropriate action?&#10;A) Explain the procedure and ask the patient if he will consent.&#10;B) Tell the patient the doctor ordered it, so he must have it collected.&#10;C) Call for help to restrain the patient so you can get the specimen.&#10;D) Keep trying to convince the patient to have his blood drawn.

Accepted Answer

As a healthcare provider, it is important to respect the patient's autonomy and obtain their informed consent before any medical procedure. Explaining the procedure can help alleviate any fears or concerns the patient may have and allow them to make an informed decision about their healthcare.

Question 4

What is the term for destruction of red blood cells due to a too-tight tourniquet?&#10;A) Hematoma&#10;B) Hemoconcentration&#10;C) Hemolysis&#10;D) Petechiae

Accepted Answer

Hemolysis refers to the destruction of red blood cells. When a tourniquet is applied too tightly, it can cause restriction of blood flow, leading to hemolysis and release of hemoglobin into the bloodstream. This can lead to complications such as kidney damage. Hematoma refers to a localized collection of blood outside of blood vessels, hemoconcentration refers to an increase in the concentration of blood components due to dehydration or other factors, and petechiae are small, pinpoint spots on the skin due to bleeding under the surface. None of these directly relate to the destruction of red blood cells from a tourniquet.

Question 5

Which of the following veins is the most common second choice when the median cubital vein is not appropriate for withdrawing a blood sample?&#10;A) Basilic vein&#10;B) Cephalic vein&#10;C) Jugular vein&#10;D) Radial vein

Accepted Answer

The cephalic vein is the second most common choice when the median cubital vein is not appropriate for blood withdrawal. It is located in the antecubital fossa along the outer side of the arm and is often visible and palpable, making it an easy and accessible option for phlebotomy procedures. The basilic vein and radial vein are also common alternatives, but the basilic vein is deeper and may be more difficult to access, while the radial vein is smaller and may not provide enough blood for certain tests. The jugular vein is not typically used for routine blood draws as it is located in the neck and may pose greater risks and complications.

Question 6

What is the single most important step of the blood collection procedure?&#10;A) Selection of the proper tubes&#10;B) Appropriate vein selection&#10;C) Patient identification&#10;D) Application of the tourniquet

Accepted Answer

Patient identification is the most important step of the blood collection procedure because it ensures that the sample collected belongs to the correct patient, helping to avoid errors in diagnosis and treatment.

Question 7

If the number on the requisition does not match the arm band, what should you do?&#10;A) Collect the blood and then clear up the discrepancy with the patient's nurse.&#10;B) Return to the lab and tell your supervisor.&#10;C) Ask the patient to state his name, and, if it matches the requisition, draw the blood.&#10;D) Contact the patient's nurse to attach a proper ID wristband to the patient.

Accepted Answer

The proper protocol in this case would be to notify the patient's nurse and have them attach the correct ID wristband to the patient, ensuring that the correct patient is being identified and that the blood draw is occurring for the correct individual. This helps prevent potential medical errors and ensures that patient safety is maintained. Collecting the blood without proper identification increases the risk of incorrect results, which can have serious consequences for the patient. Returning to the lab without addressing the issue also does not resolve the problem and puts the patient at risk. While asking the patient to state their name may be helpful, it is not a reliable method of identifying a patient and may not be accurate if the patient is confused or unable to communicate effectively.

Question 8

In which of the following choices are the steps in the correct order?&#10;A) Select equipment, identify patient, collect specimen, stop bleeding, label tubes.&#10;B) Select equipment, identify patient, label tubes, collect specimen, stop bleeding.&#10;C) Select equipment, collect specimen, identify patient, stop bleeding, label tubes.&#10;D) Select equipment, label tubes, identify patient, collect specimen, stop bleeding.

Accepted Answer

The correct order for collecting a specimen typically involves selecting the appropriate equipment first, then identifying the patient to ensure the right person is being treated, followed by the collection of the specimen. After collection, it's important to stop any bleeding that may have occurred during the process. Finally, the tubes or containers used for the specimen should be labeled with the patient's information to ensure accurate identification and processing.

Question 9

How should a needle be inserted for venipuncture?&#10;A) Bevel up, in a smooth quick motion&#10;B) Bevel up, very slowly&#10;C) Bevel down, in a smooth quick motion&#10;D) Bevel down, slowly

Accepted Answer

The needle should be inserted bevel up in a smooth quick motion to minimize discomfort for the patient and reduce the risk of complications such as hematoma or phlebitis.

Question 10

When should the tourniquet be removed?&#10;A) After finding the vein to be used&#10;B) While the first tube is filling&#10;C) After all tubes have been filled&#10;D) After removing the needle

Accepted Answer

The tourniquet should be removed while the first tube is filling to reduce discomfort and potential complications for the patient, such as hematoma formation or altered test results due to prolonged venous stasis.

Question 11

Before drawing blood, information found on the requisition form should be matched against which of the following?&#10;A) Information on the door of the patient's room&#10;B) The patient's chart&#10;C) The patient's wristband&#10;D) Information obtained from the nurse

Accepted Answer

The answer of Before drawing blood, information found on the...

Question 12

While having a blood sample collected, the patient complains of pain and tingling in the fingers. What is the likely cause?&#10;A) The tourniquet is too tight or has been on too long.&#10;B) The tourniquet is too loose.&#10;C) The tourniquet was removed too soon.&#10;D) The tourniquet was placed too far from the collection site.

Accepted Answer

The answer of While having a blood sample collected, the...

Question 13

What is the term for the small red spots on the skin that are caused by a too-tight tourniquet?&#10;A) Hematoma&#10;B) Hemoconcentration&#10;C) Hemolysis&#10;D) Petechiae

Accepted Answer

The answer of What is the term for the small...

Question 14

At what angle should the venipuncture needle be inserted?&#10;A) 15 to 30 degrees&#10;B) 30 to 45 degrees&#10;C) 45 to 60 degrees&#10;D) 60 to 75 degrees

Accepted Answer

The answer of At what angle should the venipuncture needle...

Question 15

What is the term for an increase in the ratio of formed elements to plasma?&#10;A) Hematoma&#10;B) Hemoconcentration&#10;C) Hemolysis&#10;D) Petechiae

Accepted Answer

The answer of What is the term for an increase...

Question 16

Which vein lies on top of the brachial artery?&#10;A) Basilic&#10;B) Brachial&#10;C) Cephalic&#10;D) Median cubital

Accepted Answer

The answer of Which vein lies on top of the...

Question 17

Hemoconcentration can occur in which of the following situations?&#10;A) The tourniquet was too loose.&#10;B) The tourniquet was removed before withdrawing the needle.&#10;C) Pressure was not applied after withdrawal of the needle.&#10;D) The tourniquet was left on for 2 minutes.

Accepted Answer

The answer of Hemoconcentration can occur in which of the...

Question 18

If a blood test requires a fasting specimen, what is the best way to verify that the patient is fasting?&#10;A) Assume the patient is fasting.&#10;B) Ask the ward clerk whether the patient is fasting.&#10;C) Ask the patient if he is fasting.&#10;D) Ask the patient when the last time was that he had anything to eat or drink.

Accepted Answer

The answer of If a blood test requires a fasting...

Question 19

If the needle is withdrawn before the tourniquet is removed, what is likely to occur?&#10;A) Hematoma&#10;B) Hemoconcentration&#10;C) Hemolysis&#10;D) Petechiae

Accepted Answer

The answer of If the needle is withdrawn before the...

Question 20

After applying alcohol, how long should you allow it to dry before collecting from the site?&#10;A) There is no need to allow it to dry.&#10;B) 15 seconds&#10;C) 30 to 60 seconds&#10;D) 1 to 2 minutes

Accepted Answer

The answer of After applying alcohol, how long should you...

Question 21

Which of the following steps should be taken with a syringe before using it to collect blood?&#10;A) Pull the plunger back to break the seal, then expel all the air.&#10;B) Loosen the hub of the needle to allow air to be able to enter during collection.&#10;C) Coat the inside of the syringe with an anticoagulant.&#10;D) Attach the syringe to a vacuum tube adapter.

Accepted Answer

The answer of Which of the following steps should be...

Question 22

Which of the following is the next step after removing your gloves?&#10;A) Thank the patient.&#10;B) Leave the room.&#10;C) Label the tubes.&#10;D) Wash your hands.

Accepted Answer

The answer of Which of the following is the next...

Question 23

How should bleeding be stopped at a venipuncture site?&#10;A) Press on the site with gauze and then remove the needle.&#10;B) Have patient bend his or her arm back up over the puncture site to hold the gauze in place.&#10;C) Remove the needle and apply pressure to gauze over the site.&#10;D) Immediately place an adhesive bandage on the site after withdrawal of the needle.

Accepted Answer

The answer of How should bleeding be stopped at a...

Question 24

When using a syringe, how do you tell when you have entered a vein?&#10;A) The plunger will begin to move on its own.&#10;B) The blood will automatically fill the syringe.&#10;C) A flash of blood will appear in the syringe hub.&#10;D) You have to pull the syringe back to see whether any blood enters the syringe.

Accepted Answer

The answer of When using a syringe, how do you...

Question 25

What is the term for a collection of blood under the skin at the site of a venipuncture?&#10;A) Hematoma&#10;B) Hemoconcentration&#10;C) Hemolysis&#10;D) Petechiae

Accepted Answer

The answer of What is the term for a collection...

Question 26

When should blood collection tubes be labeled?&#10;A) Before leaving the lab, to make sure there is a tube for every test requested on the requisition&#10;B) At the patient's bedside, before taking the blood&#10;C) At the patient's bedside, after taking the blood&#10;D) As soon as you return to the lab after collecting the blood

Accepted Answer

The answer of When should blood collection tubes be labeled?&#10;A)...

Question 27

How should blood be transferred from a syringe to a vacuum tube?&#10;A) Using the needle that was used to draw the blood, insert the needle into the stopper on the vacuum tube.&#10;B) Remove the needle and remove the tube stopper. Expel blood from the syringe into the tube.&#10;C) Remove the needle and attach a needless transfer device to the syringe.&#10;D) Put a cap on the syringe and transfer it to the lab instead of putting in a vacuum tube.

Accepted Answer

The answer of How should blood be transferred from a...

Deck 9: Routine Venipuncture