Butterfly Needle & Syringe Blood Draws

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What is the main purpose of a butterfly needle?

To perform surgical procedures

To collect blood samples (correct)

To administer intravenous fluids

To inject medications intramuscularly

Which of the following features distinguishes a butterfly needle from a straight needle?

The needle is longer and thicker

It has plastic wings on either side (correct)

It has a rigid, non-flexible tubing

It is used for intramuscular injections

What is the typical gauge size of a butterfly needle?

14 or 16 gauge

21 or 23 gauge (correct)

25 or 27 gauge

18 or 20 gauge

Which of the following is NOT an advantage of using a butterfly needle?

Suitable for administering intravenous medications Signup and view all the answers

What is the typical length of a butterfly needle?

1/2 to 3/4 inches Signup and view all the answers

Which feature of the butterfly needle helps to minimize discomfort during blood draws?

The smaller gauge size of the needle Signup and view all the answers

What is the purpose of pumping air into the syringe during a blood draw?

To break the potential seal of the plunger Signup and view all the answers

What is the liquid portion of whole blood called?

Plasma Signup and view all the answers

What happens to the clotting proteins when blood is allowed to clot?

They are converted to serum Signup and view all the answers

What is the purpose of adding additives to blood collection tubes?

To meet the specific testing requirements Signup and view all the answers

Which of the following is considered 'whole blood'?

All blood components together Signup and view all the answers

What is the purpose of a vacutainer during the blood transfer process?

To cause the blood to flow from the syringe to the vacutainer Signup and view all the answers

What is the liquid portion of blood called after it has been allowed to clot?

Serum Signup and view all the answers

Which of the following is NOT a component of whole blood?

Lipids Signup and view all the answers

What is the purpose of the clotting proteins in the body?

To respond to injuries and halt blood loss Signup and view all the answers

Which of the following is NOT an additive type found in blood collection tubes?

Diluent Signup and view all the answers

What is the primary purpose of the wings on a butterfly needle?

To prevent the needle from moving and causing vein collapse Signup and view all the answers

What is the first step when using a butterfly needle for a blood draw?

Remove the needle, tubing, and luer lock connection from the sterile pouch Signup and view all the answers

What is the purpose of the transfer device used in a syringe blood draw?

To connect the syringe to the vacutainer tube Signup and view all the answers

What is the primary advantage of using a syringe for a blood draw, compared to a vacutainer system?

Allows for more precise control of the blood volume collected Signup and view all the answers

When is the safety mechanism on a butterfly needle typically activated?

While the needle is still in the patient's arm Signup and view all the answers

What is the purpose of using a syringe for blood gas analysis?

To maintain the blood chemistry during transport to the lab Signup and view all the answers

What is the primary difference between using a butterfly needle and a syringe for a blood draw?

The type of equipment used to collect the blood sample Signup and view all the answers

What is the primary advantage of using a butterfly needle for a blood draw, compared to a straight needle?

Provides a more comfortable experience for the patient Signup and view all the answers

When would a syringe be preferred over a vacutainer system for a blood draw?

All of the above Signup and view all the answers

What is the purpose of the 'flash' of blood seen at the connection of the needle and tubing when using a butterfly needle?

To indicate that the needle is properly inserted into the vein Signup and view all the answers

What is the purpose of the polymer gel called a 'serum separator' in the blood collection tube?

To separate the solid and liquid portions of the blood for easier testing Signup and view all the answers

What is the purpose of the additives in blood collection tubes (vacutainers)?

To alter blood properties for preservation and specific testing needs Signup and view all the answers

What is the importance of following the 'Order of Draw' when collecting blood samples?

To prevent contamination of the blood specimens Signup and view all the answers

What is the purpose of inverting the blood collection tubes (typically 8-10 times) during and after the procedure?

To mix the blood with the additives in the tube Signup and view all the answers

What is the significance of the color-coded notch and sidebar on blood collection tubes?

It helps in identifying the tube for specific testing needs Signup and view all the answers

What is the purpose of checking the expiration date on blood collection tubes before use?

To ensure that the additives in the tube are still effective Signup and view all the answers

What is the primary purpose of the coagulation cascade when blood leaves the body?

To initiate the clotting process and stop blood loss Signup and view all the answers

What is the primary difference between the liquid portion of whole blood and the liquid portion of blood that has been allowed to clot?

Whole blood is called plasma, while clotted blood is called serum. Signup and view all the answers

What is the primary purpose of the formed elements (e.g., red blood cells, white blood cells, platelets) in whole blood?

To transport oxygen, fight infection, and aid in clotting. Signup and view all the answers

What is the primary purpose of the clotting proteins in the blood?

To respond to injuries and initiate the clotting process. Signup and view all the answers

What is the primary purpose of the liquid portion (plasma) in whole blood?

To maintain the overall volume and viscosity of the blood. Signup and view all the answers

What is the significance of the term 'whole blood' in the context of blood composition?

Whole blood refers to the blood that contains all of its formed elements (e.g., red blood cells, white blood cells, platelets). Signup and view all the answers

What is the primary advantage of using a syringe for blood collection compared to a vacutainer system?

It allows for precise withdrawal of a specific blood volume. Signup and view all the answers

What is the purpose of the transfer device used in a syringe blood draw?

To connect the syringe to the vacutainer tube for blood transfer. Signup and view all the answers

Why might a syringe be preferred over a vacutainer system for patients with fragile or collapsed veins?

Both A and B are correct. Signup and view all the answers

What is the purpose of pumping air into the syringe during a blood draw?

To break the potential seal of the plunger. Signup and view all the answers

Which of the following is an advantage of using a syringe for blood gas analysis?

Specific syringes containing anticoagulants and heparin are used to maintain blood chemistry. Signup and view all the answers

What is the purpose of inverting the blood collection tubes (typically 8-10 times) during and after the blood draw procedure?

To mix the blood with the additives in the tubes. Signup and view all the answers

What is the main difference between plasma and serum?

Plasma contains clotting factors, while serum does not. Signup and view all the answers

What is the purpose of the polymer gel called a 'serum separator' in the blood collection tube?

To separate the solid and liquid portions of the blood for easier testing. Signup and view all the answers

What is the purpose of inverting the blood collection tubes (typically 8-10 times) during and after the procedure?

To mix the blood with the additive in the tube. Signup and view all the answers

What is the primary purpose of the color-coded notch and sidebar on blood collection tubes?

To indicate the type of additive in the tube. Signup and view all the answers

What is the purpose of the additives in blood collection tubes (vacutainers)?

To prevent the blood from clotting. Signup and view all the answers

What is the purpose of checking the expiration date on blood collection tubes before use?

To ensure the additive in the tube is still effective. Signup and view all the answers

What is the main purpose of a butterfly needle?

To minimize discomfort during the blood draw. Signup and view all the answers

What is the purpose of the 'flash' of blood seen at the connection of the needle and tubing when using a butterfly needle?

To indicate the needle has successfully entered the vein. Signup and view all the answers

What is the primary advantage of using a syringe for a blood draw, compared to a vacutainer system?

Allows for greater control over the blood flow. Signup and view all the answers

What is the purpose of the clotting proteins in the body?

To prevent excessive bleeding during injury. Signup and view all the answers

What is the primary purpose of using a syringe and transfer device instead of a vacutainer system for blood collection?

To enable controlled blood withdrawal Signup and view all the answers

Which of the following is NOT a common reason for preferring a butterfly needle over a straight needle for blood draws?

Reduced risk of needlestick injuries for the healthcare professional Signup and view all the answers

What is the purpose of the luer lock connection on a butterfly needle?

To facilitate the attachment of the needle to the syringe or tubing Signup and view all the answers

What is the recommended action when a flash of blood is observed at the connection of the needle and tubing during a butterfly needle blood draw?

Attach the vacutainer or syringe to the tubing to begin blood collection Signup and view all the answers

Which of the following statements is TRUE regarding the safety mechanism on a butterfly needle?

It is typically a sliding sheath that covers the exposed needle tip Signup and view all the answers

What is the primary purpose of inverting the blood collection tubes (typically 8-10 times) during and after the blood draw procedure?

To ensure proper mixing of the blood sample with the tube additives Signup and view all the answers

Which of the following is NOT a typical additive found in blood collection tubes?

Saline solution Signup and view all the answers

What is the primary function of the serum separator (polymer gel) found in some blood collection tubes?

To separate the serum from the blood cells after centrifugation Signup and view all the answers

Which of the following statements is TRUE regarding the color-coded notch and sidebar on blood collection tubes?

They indicate the type of additive present in the tube Signup and view all the answers

What is the primary purpose of the additives in blood collection tubes?

To preserve the integrity of the blood sample for specific diagnostic tests Signup and view all the answers

Butterfly Needle & Syringe Blood Draws

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Questions and Answers

What is the main purpose of a butterfly needle?

Which of the following features distinguishes a butterfly needle from a straight needle?

What is the typical gauge size of a butterfly needle?

Which of the following is NOT an advantage of using a butterfly needle?

What is the typical length of a butterfly needle?

Which feature of the butterfly needle helps to minimize discomfort during blood draws?

What is the purpose of pumping air into the syringe during a blood draw?

What is the liquid portion of whole blood called?

What happens to the clotting proteins when blood is allowed to clot?

What is the purpose of adding additives to blood collection tubes?

Which of the following is considered 'whole blood'?

What is the purpose of a vacutainer during the blood transfer process?

What is the liquid portion of blood called after it has been allowed to clot?

Which of the following is NOT a component of whole blood?

What is the purpose of the clotting proteins in the body?

Which of the following is NOT an additive type found in blood collection tubes?

What is the primary purpose of the wings on a butterfly needle?

What is the first step when using a butterfly needle for a blood draw?

What is the purpose of the transfer device used in a syringe blood draw?

What is the primary advantage of using a syringe for a blood draw, compared to a vacutainer system?

When is the safety mechanism on a butterfly needle typically activated?

What is the purpose of using a syringe for blood gas analysis?

What is the primary difference between using a butterfly needle and a syringe for a blood draw?

What is the primary advantage of using a butterfly needle for a blood draw, compared to a straight needle?

When would a syringe be preferred over a vacutainer system for a blood draw?

What is the purpose of the 'flash' of blood seen at the connection of the needle and tubing when using a butterfly needle?

What is the purpose of the polymer gel called a 'serum separator' in the blood collection tube?

What is the purpose of the additives in blood collection tubes (vacutainers)?

What is the importance of following the 'Order of Draw' when collecting blood samples?

What is the purpose of inverting the blood collection tubes (typically 8-10 times) during and after the procedure?

What is the significance of the color-coded notch and sidebar on blood collection tubes?

What is the purpose of checking the expiration date on blood collection tubes before use?

What is the primary purpose of the coagulation cascade when blood leaves the body?

What is the primary difference between the liquid portion of whole blood and the liquid portion of blood that has been allowed to clot?

What is the primary purpose of the formed elements (e.g., red blood cells, white blood cells, platelets) in whole blood?

What is the primary purpose of the clotting proteins in the blood?

What is the primary purpose of the liquid portion (plasma) in whole blood?

What is the significance of the term 'whole blood' in the context of blood composition?

What is the primary advantage of using a syringe for blood collection compared to a vacutainer system?

What is the purpose of the transfer device used in a syringe blood draw?

Why might a syringe be preferred over a vacutainer system for patients with fragile or collapsed veins?

What is the purpose of pumping air into the syringe during a blood draw?

Which of the following is an advantage of using a syringe for blood gas analysis?

What is the purpose of inverting the blood collection tubes (typically 8-10 times) during and after the blood draw procedure?

What is the main difference between plasma and serum?

What is the purpose of the polymer gel called a 'serum separator' in the blood collection tube?

What is the purpose of inverting the blood collection tubes (typically 8-10 times) during and after the procedure?

What is the primary purpose of the color-coded notch and sidebar on blood collection tubes?

What is the purpose of the additives in blood collection tubes (vacutainers)?

What is the purpose of checking the expiration date on blood collection tubes before use?

What is the main purpose of a butterfly needle?

What is the purpose of the 'flash' of blood seen at the connection of the needle and tubing when using a butterfly needle?

What is the primary advantage of using a syringe for a blood draw, compared to a vacutainer system?

What is the purpose of the clotting proteins in the body?

What is the primary purpose of using a syringe and transfer device instead of a vacutainer system for blood collection?

Which of the following is NOT a common reason for preferring a butterfly needle over a straight needle for blood draws?

What is the purpose of the luer lock connection on a butterfly needle?

What is the recommended action when a flash of blood is observed at the connection of the needle and tubing during a butterfly needle blood draw?

Which of the following statements is TRUE regarding the safety mechanism on a butterfly needle?

What is the primary purpose of inverting the blood collection tubes (typically 8-10 times) during and after the blood draw procedure?

Which of the following is NOT a typical additive found in blood collection tubes?

What is the primary function of the serum separator (polymer gel) found in some blood collection tubes?

Which of the following statements is TRUE regarding the color-coded notch and sidebar on blood collection tubes?

What is the primary purpose of the additives in blood collection tubes?

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