Question 1

The needle size most commonly used in infants and the elderly is _____ gauge.

Accepted Answer

A)  16 
B)  23 
C)  35 
D)  21 
A)  16 
B)  23 
C)  35 
D)  21 B

Question 2

Needles used during venipuncture may be used only once.

Accepted Answer

A) True 
 B)False  True

Question 3

If a hematoma forms while you are performing a blood draw,you should move the needle around until you have re-entered the vein.

Accepted Answer

A) True 
 B)False  False

Question 4

Describe the postexposure management of a needle stick.

Accepted Answer

Postexposure management of a n

Question 5

Light blue tubes for coagulation studies should be inverted how many times following removal and prior to placing them in the rack?

Accepted Answer

A)  Two times 
B)  Three or four times 
C)  Five times 
D)  Eight to ten times 
A)  Two times 
B)  Three or four times 
C)  Five times 
D)  Eight to ten times

Question 6

Under OSHA guidelines,needle holders for Vacutainers can be reused for multiple patients,because they are not contaminated during the blood draw.

Accepted Answer

A) True 
 B)False

Question 7

No anticoagulants are found in which of the following tubes?

Accepted Answer

A)  Lavender topped 
B)  Red topped 
C)  Green topped 
D)  Yellow topped 
A)  Lavender topped 
B)  Red topped 
C)  Green topped 
D)  Yellow topped

Question 8

When the needle is inserted into the vein during a routine venipuncture,the bevel of the needle should be facing up.

Accepted Answer

A) True 
 B)False

Question 9

Without a clot activator,whole blood typically clots in _________ minutes.

Accepted Answer

A)  1 to 2 
B)  60 to 90 
C)  30 to 60 
D)  5 to 10 
A)  1 to 2 
B)  60 to 90 
C)  30 to 60 
D)  5 to 10

Question 10

The NCCLS has recommended that a red-topped "waste" tube be drawn before a light blue-topped Vacutainer tube,because thromboplastin released from cells during the venipuncture can interfere with coagulation tests.

Accepted Answer

A) True 
 B)False

Question 11

Which of the following collection containers is used to test neonates for certain metabolic disorders?

Accepted Answer

A)  Reagent strip 
B)  Capillary tubes 
C)  Microcontainers 
D)  Guthrie card 
A)  Reagent strip 
B)  Capillary tubes 
C)  Microcontainers 
D)  Guthrie card

Question 12

If blood is flowing into the Vacutainer too slowly,you should withdraw the needle slightly to center it in the vein.

Accepted Answer

A) True 
 B)False

Question 13

When a medical assistant obtains a capillary blood sample,it is important that he or she squeeze and "milk" the finger to obtain an adequate amount of blood.

Accepted Answer

A) True 
 B)False

Question 14

Which is the proper technique for performing a venipuncture?

Accepted Answer

A)  The needle bevel is face up,and the needle is inserted at a 15-degree angle. 
B)  The needle bevel is face down,and the needle is inserted at a 15- to 30-degree angle. 
C)  The needle bevel can be oriented in either direction,but the needle must be inserted at a low angle. 
D)  The needle bevel is face up,and the needle is inserted at a 20- to 30-degree angle. 
A)  The needle bevel is face up,and the needle is inserted at a 15-degree angle. 
B)  The needle bevel is face down,and the needle is inserted at a 15- to 30-degree angle. 
C)  The needle bevel can be oriented in either direction,but the needle must be inserted at a low angle. 
D)  The needle bevel is face up,and the needle is inserted at a 20- to 30-degree angle.

Question 15

_______________________________ is an anticoagulant that prevents platelets from clumping and preserves the appearance of blood cells for microscopic preparation.

Accepted Answer

A)  Thrombin 
B)  Sodium heparin 
C)  Ethylenediamine tetraacetic acid (EDT
A)  
D)  Sodium polyanetholsulfonate 
A)  Thrombin 
B)  Sodium heparin 
C)  Ethylenediamine tetraacetic acid (EDT
A)  
D)  Sodium polyanetholsulfonate

Question 16

A tourniquet should remain tied on a patient's arm no longer than

Accepted Answer

A)  3 minutes. 
B)  2 minutes. 
C)  5 minutes. 
D)  1 minute. 
E)  necessary. 
A)  3 minutes. 
B)  2 minutes. 
C)  5 minutes. 
D)  1 minute. 
E)  necessary.

Question 17

Which of the following needle safety devices has a spring-activated shield attached to a disposable syringe needle?

Accepted Answer

A)  One-handed Vacutainer needle 
B)  Butterfly needle safety lock 
C)  Syringe needle safety device 
D)  Push button butterfly safety device 
E)  Needle blunting butterfly set 
A)  One-handed Vacutainer needle 
B)  Butterfly needle safety lock 
C)  Syringe needle safety device 
D)  Push button butterfly safety device 
E)  Needle blunting butterfly set

Question 18

If a patient has had a mastectomy on the left side,you should never draw blood on that side.

Accepted Answer

A) True 
 B)False

Question 19

Which of the following are designed for use on small veins?

Accepted Answer

A)  Butterfly needles 
B)  Syringes 
C)  Multisample needles 
D)  Needle holders 
A)  Butterfly needles 
B)  Syringes 
C)  Multisample needles 
D)  Needle holders

Question 20

A hematoma can be caused by

Accepted Answer

A)  excessive probing to locate a vein. 
B)  failure to insert the needle far enough into the vein. 
C)  penetration of the needle through a vein. 
D)  All of the above 
A)  excessive probing to locate a vein. 
B)  failure to insert the needle far enough into the vein. 
C)  penetration of the needle through a vein. 
D)  All of the above

Exam 29: Assisting in Blood Collection

The needle size most commonly used in infants and the elderly is _____ gauge.

Needles used during venipuncture may be used only once.

If a hematoma forms while you are performing a blood draw,you should move the needle around until you have re-entered the vein.

Describe the postexposure management of a needle stick.

Light blue tubes for coagulation studies should be inverted how many times following removal and prior to placing them in the rack?

Under OSHA guidelines,needle holders for Vacutainers can be reused for multiple patients,because they are not contaminated during the blood draw.

No anticoagulants are found in which of the following tubes?

When the needle is inserted into the vein during a routine venipuncture,the bevel of the needle should be facing up.

Without a clot activator,whole blood typically clots in _________ minutes.

The NCCLS has recommended that a red-topped "waste" tube be drawn before a light blue-topped Vacutainer tube,because thromboplastin released from cells during the venipuncture can interfere with coagulation tests.

Which of the following collection containers is used to test neonates for certain metabolic disorders?

If blood is flowing into the Vacutainer too slowly,you should withdraw the needle slightly to center it in the vein.

When a medical assistant obtains a capillary blood sample,it is important that he or she squeeze and "milk" the finger to obtain an adequate amount of blood.

Which is the proper technique for performing a venipuncture?

_______________________________ is an anticoagulant that prevents platelets from clumping and preserves the appearance of blood cells for microscopic preparation.

A tourniquet should remain tied on a patient's arm no longer than

Which of the following needle safety devices has a spring-activated shield attached to a disposable syringe needle?

If a patient has had a mastectomy on the left side,you should never draw blood on that side.

Which of the following are designed for use on small veins?

A hematoma can be caused by

Competency-Based Education and the Medical Assistant Student

The Health Record

Infection Control

Patient Assessment

Patient Education

Nutrition and Health Promotion

Vital Signs

Assisting With the Primary Physical Examination

Principles of Pharmacology

Pharmacology Math

Administering Medications

Safety and Emergency Practices

Assisting in Ophthalmology and Otolaryngology

Assisting in Dermatology

Assisting in Gastroenterology

Assisting in Urology and Male Reproduction

Assisting in Obstetrics and Gynecology

Assisting in Pediatrics

Assisting in Orthopedic Medicine

Assisting in Neurology and Mental Health

Assisting in Endocrinology

Assisting in Pulmonary Medicine

Assisting in Cardiology

Assisting in Geriatrics

Principles of Electrocardiography

Assisting With Diagnostic Imaging

Assisting in the Clinical Laboratory

Assisting in the Analysis of Urine

Assisting in the Analysis of Blood

Assisting in Microbiology and Immunology

Surgical Supplies and Instruments

Surgical Asepsis and Assisting With Surgical Procedures

Career Development and Life Skills

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