#1
Which vein is commonly used for routine venipuncture?
Radial vein
Femoral vein
Median cubital vein
Dorsal venous arch
#2
What is the primary purpose of using a butterfly needle during blood collection?
To minimize pain during insertion
To collect larger volumes of blood
To facilitate blood flow for fragile veins
To prevent contamination
#3
What is the purpose of a syringe method in blood collection?
To minimize the risk of hematoma
To collect larger volumes of blood
To facilitate blood flow in fragile veins
To increase the speed of blood collection
#4
Which technique is commonly used for capillary blood collection?
Venipuncture
Arterial puncture
Fingerstick
Butterfly method
#5
What is the primary purpose of warming the site before capillary blood collection?
To decrease blood flow
To prevent hematoma
To improve blood flow and ease the collection
To increase the risk of infection
#6
What is the purpose of using a tourniquet during blood collection?
To dilate blood vessels
To locate veins
To prevent hematoma formation
To decrease blood flow
#7
Which antiseptic is commonly used for cleaning the site before venipuncture?
Isopropyl alcohol
Hydrogen peroxide
Benzalkonium chloride
Povidone-iodine
#8
Which factor is crucial for successful blood culture collection?
Using a larger needle gauge
Collecting blood in a sterile tube
Allowing the tourniquet to stay on for an extended period
Avoiding patient communication during the procedure
#9
In what order should blood collection tubes be filled when using the same venipuncture site?
Blue, Red, Green, Lavender
Green, Blue, Red, Lavender
Red, Blue, Lavender, Green
Lavender, Green, Blue, Red
#10
Which factor is essential to consider when selecting the appropriate needle gauge for venipuncture?
Patient's age
Patient's gender
Vein depth and size
Blood type
#11
What is the recommended time limit for a tourniquet to be applied during venipuncture?
No time limit
30 seconds
1 minute
2 minutes
#12
What is the primary reason for using a discard tube before collecting blood for laboratory testing?
To prevent contamination
To avoid hemolysis
To remove excess anticoagulant
To prime the needle
#13
What is the recommended angle for inserting the needle during venipuncture?
90 degrees
45 degrees
30 degrees
15 degrees
#14
Which blood collection tube is typically used for coagulation studies?
Lavender top tube
Green top tube
Blue top tube
Red top tube
#15
What is the purpose of gently inverting blood collection tubes after collection?
To mix anticoagulant with blood
To cool down the blood
To increase clot formation
To speed up the coagulation process
#16
Which vein is often used for venipuncture in pediatric patients?
Cephalic vein
Basilic vein
Dorsal venous arch
Median cubital vein
#17
Which blood collection tube is commonly used for glucose testing?
Green top tube
Lavender top tube
Gray top tube
Red top tube
#18
What precaution should be taken when collecting blood for arterial blood gas (ABG) analysis?
Use a tourniquet
Warm the site before collection
Collect in a red top tube
Avoid using a needle with a safety mechanism
#19
What is the primary advantage of using a closed blood collection system?
Reduced risk of contamination
Faster blood flow
Easier visualization of blood
Lower cost