Question 1

Collection of a complete blood count (CBC) by dermal puncture is most likely to be requested for a patient:

Accepted Answer

A)  receiving chemotherapy. 
B)  with poor circulation. 
C)  with coronary artery disease. 
D)  receiving allergy injections. 
A)  receiving chemotherapy. 
B)  with poor circulation. 
C)  with coronary artery disease. 
D)  receiving allergy injections.

Question 2

All U.S.states require testing of newborns for:

Accepted Answer

A)  Down syndrome. 
B)  cystic fibrosis. 
C)  sickle cell anemia. 
D)  phenylketonuria. 
A)  Down syndrome. 
B)  cystic fibrosis. 
C)  sickle cell anemia. 
D)  phenylketonuria.

Question 3

Which of the following pairings is incorrect?

Accepted Answer

A)  Thumb and calluses 
B)  Index finger and increased nerve endings 
C)  Third finger and increased possibility of bone puncture 
D)  Fifth finger and decreased tissue mass 
A)  Thumb and calluses 
B)  Index finger and increased nerve endings 
C)  Third finger and increased possibility of bone puncture 
D)  Fifth finger and decreased tissue mass

Question 4

When collecting newborn filter paper screening tests,blood should be visible on both sides of the filter paper.

Accepted Answer

A) True 
 B)False

Question 5

Collection of excess blood from a premature infant could cause:

Accepted Answer

A)  hemorrhage. 
B)  venous thrombosis. 
C)  anemia. 
D)  gangrene. 
A)  hemorrhage. 
B)  venous thrombosis. 
C)  anemia. 
D)  gangrene.

Question 6

Reasons for selecting the fleshy areas located near the center of the third and fourth fingers on the palmar side of the nondominant hand as preferred sites for finger puncture include which of the following?

Accepted Answer

A)  There is decreased tissue in the fifth finger. 
B)  Calluses may be present on the thumb. 
C)  The index finger naturally contains increased nerve endings. 
D)  All of the above 
A)  There is decreased tissue in the fifth finger. 
B)  Calluses may be present on the thumb. 
C)  The index finger naturally contains increased nerve endings. 
D)  All of the above

Question 7

Amber-colored Microtainer tubes are used to collect samples for:

Accepted Answer

A)  glucose. 
B)  thyroid tests. 
C)  platelet counts. 
D)  bilirubin. 
A)  glucose. 
B)  thyroid tests. 
C)  platelet counts. 
D)  bilirubin.

Question 8

How many attempts should a blood collector make to obtain an adequate amount of blood by dermal puncture before requesting assistance from another blood collector?

Accepted Answer

A)  One 
B)  Two 
C)  Three 
D)  Four 
A)  One 
B)  Two 
C)  Three 
D)  Four

Question 9

Failure to completely fill the filter paper circle for a newborn screening test:

Accepted Answer

A)  is only important for phenylketonuria (PKU) tests. 
B)  can cause a false-positive result. 
C)  can cause a false-negative result. 
D)  occurs when the circle has been contaminated. 
A)  is only important for phenylketonuria (PKU) tests. 
B)  can cause a false-positive result. 
C)  can cause a false-negative result. 
D)  occurs when the circle has been contaminated.

Question 10

Puncture devices should be firmly placed on the skin before activation.

Accepted Answer

A) True 
 B)False

Question 11

Scraping a microcollection tube across the puncture site is acceptable if the first drop of blood has been wiped away.

Accepted Answer

A) True 
 B)False

Question 12

When warming a dermal puncture site,the temperature should not exceed:

Accepted Answer

A)  32°C. 
B)  42°C. 
C)  52°C. 
D)  62°C. 
A)  32°C. 
B)  42°C. 
C)  52°C. 
D)  62°C.

Question 13

The depth of a dermal puncture must be controlled to:

Accepted Answer

A)  prevent hemolysis. 
B)  ensure adequate blood flow. 
C)  prevent contact with bone. 
D)  obtain a representative sample. 
A)  prevent hemolysis. 
B)  ensure adequate blood flow. 
C)  prevent contact with bone. 
D)  obtain a representative sample.

Question 14

Which of the following are reasons why hemolysis is seen more frequently in samples collected by dermal puncture than by venipuncture?

Accepted Answer

A)  Red blood cells of newborns are more fragile. 
B)  Newborns have high red blood cell counts. 
C)  Excessive squeezing may have been used. 
D)  All of the above 
A)  Red blood cells of newborns are more fragile. 
B)  Newborns have high red blood cell counts. 
C)  Excessive squeezing may have been used. 
D)  All of the above

Question 15

Capillary punctures on newborns are performed on the:

Accepted Answer

A)  index finger. 
B)  plantar area of the heel. 
C)  back of the heel. 
D)  earlobe. 
A)  index finger. 
B)  plantar area of the heel. 
C)  back of the heel. 
D)  earlobe.

Question 16

During dermal puncture,the first drop of blood is wiped away because it may be:

Accepted Answer

A)  diluted with tissue fluid. 
B)  already clotted. 
C)  too concentrated because blood has not been flowing. 
D)  contaminated with skin bacteria. 
A)  diluted with tissue fluid. 
B)  already clotted. 
C)  too concentrated because blood has not been flowing. 
D)  contaminated with skin bacteria.

Question 17

Which of the following can affect the quality of newborn bilirubin results?

Accepted Answer

A)  Hemolysis 
B)  Exposure to light 
C)  Collection at the wrong time 
D)  All of the above 
A)  Hemolysis 
B)  Exposure to light 
C)  Collection at the wrong time 
D)  All of the above

Question 18

Collection of a sufficient amount of blood by dermal puncture is most difficult from:

Accepted Answer

A)  obese patients. 
B)  geriatric patients. 
C)  severely dehydrated patients. 
D)  patients performing home glucose monitoring. 
A)  obese patients. 
B)  geriatric patients. 
C)  severely dehydrated patients. 
D)  patients performing home glucose monitoring.

Collection of a complete blood count (CBC) by dermal puncture is most likely to be requested for a patient:

All U.S.states require testing of newborns for:

Which of the following pairings is incorrect?

When collecting newborn filter paper screening tests,blood should be visible on both sides of the filter paper.

Collection of excess blood from a premature infant could cause:

Reasons for selecting the fleshy areas located near the center of the third and fourth fingers on the palmar side of the nondominant hand as preferred sites for finger puncture include which of the following?

Amber-colored Microtainer tubes are used to collect samples for:

How many attempts should a blood collector make to obtain an adequate amount of blood by dermal puncture before requesting assistance from another blood collector?

Failure to completely fill the filter paper circle for a newborn screening test:

Puncture devices should be firmly placed on the skin before activation.

Scraping a microcollection tube across the puncture site is acceptable if the first drop of blood has been wiped away.

When warming a dermal puncture site,the temperature should not exceed:

The depth of a dermal puncture must be controlled to:

Which of the following are reasons why hemolysis is seen more frequently in samples collected by dermal puncture than by venipuncture?

Capillary punctures on newborns are performed on the:

During dermal puncture,the first drop of blood is wiped away because it may be:

Which of the following can affect the quality of newborn bilirubin results?

Collection of a sufficient amount of blood by dermal puncture is most difficult from:

Introduction to Blood Collection

Venipuncture Equipment

Venipuncture Techniques

Preexamination Variables and Venipuncture Complications

Special Blood Collection

Point-Of-Care Testing

Blood Collection From Vascular Access Devices

Filters

Exam 6: Dermal Puncture

Collection of a complete blood count (CBC) by dermal puncture is most likely to be requested for a patient:

All U.S.states require testing of newborns for:

Which of the following pairings is incorrect?

When collecting newborn filter paper screening tests,blood should be visible on both sides of the filter paper.

Collection of excess blood from a premature infant could cause:

Reasons for selecting the fleshy areas located near the center of the third and fourth fingers on the palmar side of the nondominant hand as preferred sites for finger puncture include which of the following?

Amber-colored Microtainer tubes are used to collect samples for:

How many attempts should a blood collector make to obtain an adequate amount of blood by dermal puncture before requesting assistance from another blood collector?

Failure to completely fill the filter paper circle for a newborn screening test:

Puncture devices should be firmly placed on the skin before activation.

Scraping a microcollection tube across the puncture site is acceptable if the first drop of blood has been wiped away.

When warming a dermal puncture site,the temperature should not exceed:

The depth of a dermal puncture must be controlled to:

Which of the following are reasons why hemolysis is seen more frequently in samples collected by dermal puncture than by venipuncture?

Capillary punctures on newborns are performed on the:

During dermal puncture,the first drop of blood is wiped away because it may be:

Which of the following can affect the quality of newborn bilirubin results?

Collection of a sufficient amount of blood by dermal puncture is most difficult from:

Introduction to Blood Collection

Venipuncture Equipment

Venipuncture Techniques

Preexamination Variables and Venipuncture Complications

Special Blood Collection

Point-Of-Care Testing

Blood Collection From Vascular Access Devices

Filters