Question 1

The best choice of equipment for venipuncture from a geriatric or pediatric patient with small fragile veins is a:

Accepted Answer

A)  23-gauge needle and a winged blood collection set with a syringe. 
B)  23-gauge needle,a winged blood collection set,and evacuated tubes. 
C)  21-gauge needle and a small syringe. 
D)  25-gauge needle and an evacuated tube. 
A)  23-gauge needle and a winged blood collection set with a syringe. 
B)  23-gauge needle,a winged blood collection set,and evacuated tubes. 
C)  21-gauge needle and a small syringe. 
D)  25-gauge needle and an evacuated tube. A

Question 2

Tests that are most critically affected when a patient is not fasting at the time of collection include:

Accepted Answer

A)  complete blood count,calcium,and magnesium. 
B)  glucose,cholesterol,triglycerides,or lipid profiles. 
C)  prothrombin time (PT) and partial thromboplastin time (PTT). 
D)  electrolytes and ionized magnesium. 
A)  complete blood count,calcium,and magnesium. 
B)  glucose,cholesterol,triglycerides,or lipid profiles. 
C)  prothrombin time (PT) and partial thromboplastin time (PTT). 
D)  electrolytes and ionized magnesium. B

Question 3

Matching
Match the following variables with the possible effect on test results.
-Herbal supplements

Accepted Answer

A) Decreased glucose 
B) Decreased white blood cell (WBCs) and platelets 
C) Increased cholesterol and triglycerides 
D) Increased hemoglobin 
E) Increased PO2 and white blood cells (WBCs)
F)Increased prothrombin time (PT) and activated partial thromboplastin time (APTT) 
A) Decreased glucose 
B) Decreased white blood cell (WBCs) and platelets 
C) Increased cholesterol and triglycerides 
D) Increased hemoglobin 
E) Increased PO2 and white blood cells (WBCs)
F)Increased prothrombin time (PT) and activated partial thromboplastin time (APTT) F

Question 4

A blood collector asks an outpatient whether she has had breakfast before obtaining blood for a fasting glucose.The patient responds "yes." What should the blood collector do?

Accepted Answer

A)  Draw the sample immediately. 
B)  Reschedule the test in 12 hours. 
C)  Ask the patient to return 2 hours later. 
D)  Ask the health-care provider if the blood should be drawn. 
A)  Draw the sample immediately. 
B)  Reschedule the test in 12 hours. 
C)  Ask the patient to return 2 hours later. 
D)  Ask the health-care provider if the blood should be drawn.

Question 5

When performing a venipuncture,if blood does not immediately enter the tube,the needle should be withdrawn.

Accepted Answer

A) True 
 B)False

Question 6

Collection of blood from a vigorously crying child may cause a falsely:

Accepted Answer

A)  decreased white blood cell count. 
B)  increased glucose level. 
C)  increased white blood cell count. 
D)  decreased glucose level. 
A)  decreased white blood cell count. 
B)  increased glucose level. 
C)  increased white blood cell count. 
D)  decreased glucose level.

Question 7

Using a 20-gauge needle and a 10-mL evacuated tube on a small vein may cause:

Accepted Answer

A)  sample hemolysis. 
B)  a hematoma. 
C)  a collapsed vein. 
D)  loss of tube vacuum. 
A)  sample hemolysis. 
B)  a hematoma. 
C)  a collapsed vein. 
D)  loss of tube vacuum.

Question 8

It is not necessary to allow the alcohol to dry before blood collection.

Accepted Answer

A) True 
 B)False

Question 9

Extra care may have to be taken when positioning the arm of patients with:

Accepted Answer

A)  Alzheimer disease. 
B)  arthritis. 
C)  paralysis. 
D)  Both B and C 
A)  Alzheimer disease. 
B)  arthritis. 
C)  paralysis. 
D)  Both B and C

Question 10

Which of the following factors are associated with possible nerve injury when collecting a blood sample?

Accepted Answer

A)  Inserting the needle greater than at a 30-degree angle 
B)  Laterally redirecting the needle when collecting blood from the basilic vein 
C)  Blind probing 
D)  All of the above 
A)  Inserting the needle greater than at a 30-degree angle 
B)  Laterally redirecting the needle when collecting blood from the basilic vein 
C)  Blind probing 
D)  All of the above

Question 11

Hematomas can be caused by which of the following?

Accepted Answer

A)  Having the patient bend the elbow 
B)  Inserting the needle partially into the vein 
C)  Removing the tourniquet after removing the needle 
D)  All of the above 
A)  Having the patient bend the elbow 
B)  Inserting the needle partially into the vein 
C)  Removing the tourniquet after removing the needle 
D)  All of the above

Question 12

Forcing blood from a syringe into an evacuated tube may:

Accepted Answer

A)  increase potassium values. 
B)  decrease glucose values. 
C)  produce lipemic serum. 
D)  contaminate a blood culture. 
A)  increase potassium values. 
B)  decrease glucose values. 
C)  produce lipemic serum. 
D)  contaminate a blood culture.

Question 13

Matching
Match the following variables with the possible effect on test results.
-Posture change from supine to erect

Accepted Answer

A) Decreased glucose 
B) Decreased white blood cell (WBCs) and platelets 
C) Increased cholesterol and triglycerides 
D) Increased hemoglobin 
E) Increased PO2 and white blood cells (WBCs)
F)Increased prothrombin time (PT) and activated partial thromboplastin time (APTT) 
A) Decreased glucose 
B) Decreased white blood cell (WBCs) and platelets 
C) Increased cholesterol and triglycerides 
D) Increased hemoglobin 
E) Increased PO2 and white blood cells (WBCs)
F)Increased prothrombin time (PT) and activated partial thromboplastin time (APTT)

Question 14

Geriatric patients are more prone to infection at the venipuncture site because their:

Accepted Answer

A)  epidermal cells are replaced more slowly. 
B)  veins are closer to the surface. 
C)  immune systems are weakened. 
D)  Both A and C 
A)  epidermal cells are replaced more slowly. 
B)  veins are closer to the surface. 
C)  immune systems are weakened. 
D)  Both A and C

Question 15

What is the condition caused by blood accumulating in the tissues of the muscles causing muscle and nerve injury?

Accepted Answer

A)  Compartment syndrome 
B)  Syncope 
C)  Hemolysis 
D)  Hematoma 
A)  Compartment syndrome 
B)  Syncope 
C)  Hemolysis 
D)  Hematoma

Question 16

Matching
Match the following variables with the possible effect on test results.
-Smoking

Accepted Answer

A) Decreased glucose 
B) Decreased white blood cell (WBCs) and platelets 
C) Increased cholesterol and triglycerides 
D) Increased hemoglobin 
E) Increased PO2 and white blood cells (WBCs)
F)Increased prothrombin time (PT) and activated partial thromboplastin time (APTT) 
A) Decreased glucose 
B) Decreased white blood cell (WBCs) and platelets 
C) Increased cholesterol and triglycerides 
D) Increased hemoglobin 
E) Increased PO2 and white blood cells (WBCs)
F)Increased prothrombin time (PT) and activated partial thromboplastin time (APTT)

Question 17

The best reason why the majority of patient samples are drawn in the early morning hours is because:

Accepted Answer

A)  the patient will not be in the basal state early in the morning because this state requires several hours of normal physical activity by the patient. 
B)  patients should have consumed a meal no less than 3 hours prior to the time of collection. 
C)  the patient will be in the basal state,having restrained from strenuous exercise and having fasted for approximately 12 hours. 
D)  patients are generally more agreeable with collection times scheduled early in the morning. 
A)  the patient will not be in the basal state early in the morning because this state requires several hours of normal physical activity by the patient. 
B)  patients should have consumed a meal no less than 3 hours prior to the time of collection. 
C)  the patient will be in the basal state,having restrained from strenuous exercise and having fasted for approximately 12 hours. 
D)  patients are generally more agreeable with collection times scheduled early in the morning.

Question 18

Patients are most likely to be in a basal state at:

Accepted Answer

A)  6 a.m. 
B)  10 a.m. 
C)  2 p.m. 
D)  6 p.m. 
A)  6 a.m. 
B)  10 a.m. 
C)  2 p.m. 
D)  6 p.m.

Question 19

Matching
Match the following variables with the possible effect on test results.
-Prolonged fasting

Accepted Answer

A) Decreased glucose 
B) Decreased white blood cell (WBCs) and platelets 
C) Increased cholesterol and triglycerides 
D) Increased hemoglobin 
E) Increased PO2 and white blood cells (WBCs)
F)Increased prothrombin time (PT) and activated partial thromboplastin time (APTT) 
A) Decreased glucose 
B) Decreased white blood cell (WBCs) and platelets 
C) Increased cholesterol and triglycerides 
D) Increased hemoglobin 
E) Increased PO2 and white blood cells (WBCs)
F)Increased prothrombin time (PT) and activated partial thromboplastin time (APTT)

Question 20

Allowing blood to leak from a vein into the surrounding tissue will cause:

Accepted Answer

A)  hematomas. 
B)  hemolysis. 
C)  nerve damage. 
D)  syncope. 
A)  hematomas. 
B)  hemolysis. 
C)  nerve damage. 
D)  syncope.

The best choice of equipment for venipuncture from a geriatric or pediatric patient with small fragile veins is a:

Tests that are most critically affected when a patient is not fasting at the time of collection include:

Matching Match the following variables with the possible effect on test results. -Herbal supplements

A blood collector asks an outpatient whether she has had breakfast before obtaining blood for a fasting glucose.The patient responds "yes." What should the blood collector do?

When performing a venipuncture,if blood does not immediately enter the tube,the needle should be withdrawn.

Collection of blood from a vigorously crying child may cause a falsely:

Using a 20-gauge needle and a 10-mL evacuated tube on a small vein may cause:

It is not necessary to allow the alcohol to dry before blood collection.

Extra care may have to be taken when positioning the arm of patients with:

Which of the following factors are associated with possible nerve injury when collecting a blood sample?

Hematomas can be caused by which of the following?

Forcing blood from a syringe into an evacuated tube may:

Matching Match the following variables with the possible effect on test results. -Posture change from supine to erect

Geriatric patients are more prone to infection at the venipuncture site because their:

What is the condition caused by blood accumulating in the tissues of the muscles causing muscle and nerve injury?

Matching Match the following variables with the possible effect on test results. -Smoking

The best reason why the majority of patient samples are drawn in the early morning hours is because:

Patients are most likely to be in a basal state at:

Matching Match the following variables with the possible effect on test results. -Prolonged fasting

Allowing blood to leak from a vein into the surrounding tissue will cause:

Introduction to Blood Collection

Venipuncture Equipment

Venipuncture Techniques

Special Blood Collection

Dermal Puncture

Point-Of-Care Testing

Blood Collection From Vascular Access Devices

Filters

Exam 4: Preexamination Variables and Venipuncture Complications

The best choice of equipment for venipuncture from a geriatric or pediatric patient with small fragile veins is a:

Tests that are most critically affected when a patient is not fasting at the time of collection include:

Matching Match the following variables with the possible effect on test results. -Herbal supplements

A blood collector asks an outpatient whether she has had breakfast before obtaining blood for a fasting glucose.The patient responds "yes." What should the blood collector do?

When performing a venipuncture,if blood does not immediately enter the tube,the needle should be withdrawn.

Collection of blood from a vigorously crying child may cause a falsely:

Using a 20-gauge needle and a 10-mL evacuated tube on a small vein may cause:

It is not necessary to allow the alcohol to dry before blood collection.

Extra care may have to be taken when positioning the arm of patients with:

Which of the following factors are associated with possible nerve injury when collecting a blood sample?

Hematomas can be caused by which of the following?

Forcing blood from a syringe into an evacuated tube may:

Matching Match the following variables with the possible effect on test results. -Posture change from supine to erect

Geriatric patients are more prone to infection at the venipuncture site because their:

What is the condition caused by blood accumulating in the tissues of the muscles causing muscle and nerve injury?

Matching Match the following variables with the possible effect on test results. -Smoking

The best reason why the majority of patient samples are drawn in the early morning hours is because:

Patients are most likely to be in a basal state at:

Matching Match the following variables with the possible effect on test results. -Prolonged fasting

Allowing blood to leak from a vein into the surrounding tissue will cause:

Introduction to Blood Collection

Venipuncture Equipment

Venipuncture Techniques

Special Blood Collection

Dermal Puncture

Point-Of-Care Testing

Blood Collection From Vascular Access Devices

Filters