Chapter 26: Drugs Used to Treat Thromboembolic Disorders

Chapter 26: Drugs Used to Treat Thromboembolic Disorders

Complete Chapter Questions With Answers

Sample Questions Are Posted Below

MULTIPLE CHOICE

1. A trauma patient arrives in the emergency department via EMS. He is bleeding profusely. A medical alert bracelet indicates that he is on heparin therapy. The nurse will most likely administer which medication that counteracts the action of heparin?

ANS:  C

Protamine sulfate is the antidote to heparin. With the patient’s risk of fluid volume deficit as a result of trauma, the primary intervention would be to counteract the effects of heparin to prevent hemorrhage. Warfarin is an anticoagulant and would not counteract hemorrhage. Lovenox is chemically related to heparin and would not counteract hemorrhage. Vitamin K is used to control the bleeding that results from use of warfarin (Coumadin), not heparin.

DIF:    Cognitive Level: Comprehension     REF:   Page 414        OBJ:   3 | 5

TOP:   Nursing Process Step: Implementation

MSC:  NCLEX Client Needs Category: Physiological Integrity

NOT:  CONCEPT(S): Clinical Judgment; Perfusion; Safety

2. A patient receiving IV heparin therapy for a deep vein thrombosis (DVT) in his right calf asks why his calf remains painful, edematous, and warm to touch after 2 days of anticoagulant therapy. Which response by the nurse is most accurate?

ANS:  B

Heparin is used to treat a thromboembolism and promote neutralization of activated clotting factors, preventing the extension of thrombi and the formation of emboli. Heparin will minimize tissue damage by preventing it from developing into an insoluble, stable thrombus. It is inappropriate to tell a patient how long it will take to dissolve a clot. The patient’s question does not warrant notification of the health care provider. Telling the patient that the health care provider will be starting the patient on ticlopidine is inappropriate and inaccurate.

DIF:    Cognitive Level: Analysis                REF:   Pages 412-413

OBJ:   3                    TOP:   Nursing Process Step: Implementation

MSC:  NCLEX Client Needs Category: Physiological Integrity

NOT:  CONCEPT(S): Clinical Judgment; Communication; Patient Education; Perfusion; Clotting

3. A patient is receiving IV heparin therapy. The aPTT is 90; the laboratory control is 30 seconds. Which nursing intervention is most accurate?

ANS:  C

Heparin dosage is considered to be in the normal therapeutic range if the aPTT is 1.5 to 2.5 times the control value. The patient’s aPTT value is above the therapeutic range, which puts her at risk for hemorrhage. The most appropriate nursing action would be to stop the heparin drip. These results cannot be documented as being within the normal therapeutic range. RBC count and mental status are not relevant in assessing therapeutic response to anticoagulation.

DIF:    Cognitive Level: Application           REF:   Page 414        OBJ:   4 | 5

TOP:   Nursing Process Step: Assessment

MSC:  NCLEX Client Needs Category: Physiological Integrity

NOT:  CONCEPT(S): Clinical Judgment; Safety

4. Which is an accurate nursing action when administering subcutaneous enoxaparin, a low-molecular-weight heparin product?

ANS:  B

The needle is left in place for 10 seconds after injection. Air is not expelled from the prefilled syringe. This medication is not administered intramuscularly. The site should not be massaged to increase absorption.

DIF:    Cognitive Level: Application           REF:   Page 409        OBJ:   5

TOP:   Nursing Process Step: Implementation

MSC:  NCLEX Client Needs Category: Safe, Effective Care Environment

NOT:  CONCEPT(S): Clinical Judgment; Safety