Nokea
A client taking warfarin asks the nurse about using herbal remedies. Which of the following would the nurse instruct the client to avoid? Select all that apply.
- A. Chamomile
- B. St. Johns wort
- C. Ginkgo biloba
- D. Ginger
- E. Ginseng
Correct Answer: A,B,C,D,E
Rationale: Warfarin has the potential to interact with many herbal remedies, such as chamomile, St. John's wort, ginkgo biloba, ginger, and ginseng, which may increase the risk of bleeding.
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A client is receiving streptokinase. The nurse understands that which of the following would occur? Select all that apply.
- A. Breakdown of existing thrombi
- B. Reopening of occluded blood vessels
- C. Prevention of tissue necrosis
- D. Decreased risk of internal bleeding
- E. Prevention of formation of a thrombus
Correct Answer: A,B,C
Rationale: Streptokinase is a thrombolytic drug. Thrombolytic drugs break down existing thrombi, reopen blood vessels after occlusion, and prevent tissue necrosis.
A client is prescribed warfarin. The client also takes a diuretic for the treatment of cardiac problems. The nurse would anticipate which of the following?
- A. Decreased effectiveness of the anticoagulant
- B. Increased effectiveness of the diuretic
- C. Increased absorption of the anticoagulant
- D. Increased absorption of the diuretic
Correct Answer: A
Rationale: The nurse should monitor for decreased effectiveness of warfarin as an effect of the interaction between the anticoagulant and the diuretic.
A nurse is conducting an in-service presentation about hemostasis. The nurse determines that the teaching was successful when the class identifies a thrombus as which of the following?
- A. Damage to a blood vessel
- B. Formation of a blood clot
- C. Cessation of bleeding
- D. Coagulation cascade
Correct Answer: B
Rationale: A thrombus refers to the formation of a blood clot, sometimes from damage, in a vessel that impedes blood flow.
After teaching a group of nursing students about heparins, the instructor determines that the teaching was successful when the students identify which of the following as an example of a low-molecular-weight heparin (LMWH)? Select all that apply.
- A. Dalteparin
- B. Streptokinase
- C. Enoxaparin
- D. Warfarin
- E. Tinzaparin
Correct Answer: A,C,E
Rationale: Dalteparin, enoxaparin, and tinzaparin are all examples of LMWHs. Streptokinase is a thrombolytic; warfarin is an oral anticoagulant.
A nurse is conducting a seminar on thrombosis. What information would the nurse include about the cause of arterial thrombosis?
- A. Decreased blood flow
- B. Injury to the vessel wall
- C. Arrhythmias
- D. Altered blood coagulation
Correct Answer: C
Rationale: The nurse should mention that arterial thrombosis is caused by atherosclerosis and arrhythmias. Decreased blood flow, injury to the vessel wall, and altered blood flow are causes of venous thrombosis.