Chapter 29 Blood Transfusions

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Chapter 29  Blood Transfusions

 

 

Complete Chapter Questions And Answers
 

Sample Questions

 

MULTIPLE CHOICE

1. For how long may blood preserved with CPD be stored (unfrozen) before use?
a.
21 days
b.
35 days
c.
42 days
d.
3 months

ANS: A
When preserved with citrate, phosphate, and dextrose a unit of blood has a shelf life of 21 days (unfrozen).

DIF: Cognitive Level: Knowledge REF: Text reference: p. 738
OBJ: Discuss indications for blood therapy. TOP: Packed Red Cells
KEY: Nursing Process Step: Assessment MSC: NCLEX: Physiological Integrity

2. The nurse is caring for a patient who needs a blood transfusion. The patient has been tested and was found to have blood type O. The nurse knows this means that which antigen is present on the surface of the red blood cells?
a.
The type A antigen is present.
b.
The type B antigen is present.
c.
Neither type A nor type B antigens are present.
d.
Both type A and type B antigens are present.

ANS: C
When neither A nor B antigens are present, the blood group is type O. When the type A antigen is present, the blood group is type A. When the type B antigen is present, the blood group is type B. When both A and B antigens are present, the blood group is type AB.

DIF: Cognitive Level: Application REF: Text reference: p. 758
OBJ: Describe various transfusion reactions. TOP: Blood Type
KEY: Nursing Process Step: Assessment MSC: NCLEX: Physiological Integrity

3. A nurse is concerned about the type of blood that a patient is to receive. A patient with an O blood type may safely receive which type of blood?
a.
Type A blood
b.
Type B blood
c.
Type AB blood
d.
Type O blood

ANS: D
People with type O blood have both A and B antibodies and therefore can receive only type O blood. People with type A blood have anti-B antibodies and therefore can receive only type A blood. People with type B blood have anti-A antibodies and therefore can receive only type B blood. People with type AB blood have neither antibody and therefore can receive all blood types.

DIF: Cognitive Level: Comprehension REF: Text reference: pp. 738-739
OBJ: Demonstrate the following skills on selected patients: initiating blood therapy, implementing autotransfusion, and monitoring for adverse reactions to transfusion.
TOP: Type O Blood KEY: Nursing Process Step: Assessment
MSC: NCLEX: Physiological Integrity

4. The patient is brought to the emergency department after a motor vehicle accident and has lost a large volume of blood. The patient’s blood type is AB. Which blood type may this patient safely receive in transfusion?
a.
Only type AB blood
b.
Only type O blood
c.
All blood types
d.
Only type A blood

ANS: C
People with type AB blood have neither antibody and therefore can receive all blood types.

DIF: Cognitive Level: Application REF: Text reference: pp. 738-739
OBJ: Demonstrate the following skills on selected patients: initiating blood therapy, implementing autotransfusion, and monitoring for adverse reactions to transfusion.
TOP: Type AB Blood KEY: Nursing Process Step: Assessment
MSC: NCLEX: Physiological Integrity

5. The patient is scheduled to receive a blood transfusion. Preadministration laboratory tests are run to assess the level of which component in the patient’s blood?
a.
Sodium (Na)
b.
Calcium (Ca)
c.
Potassium (K)
d.
Iron (Fe)

ANS: C
When blood is stored, there is continual destruction of RBCs, which releases potassium from the cells into the plasma. If blood is transfused rapidly, transient elevated potassium levels may occur before the potassium is reabsorbed and put the patient at risk.

DIF: Cognitive Level: Application REF: Text reference: p. 738 |Text reference: p. 740
OBJ: Describe various transfusion reactions. TOP: Hypocalcemia
KEY: Nursing Process Step: Implementation
MSC: NCLEX: Physiological Integrity

 

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