Nokea
A patient with a history of atrial fibrillation has contacted the clinic saying that she has accidentally overdosed on her prescribed warfarin (Coumadin). The nurse should recognize the possible need for what antidote?
- A. IVIG
- B. Factor X
- C. Vitamin K
- D. Factor VIII
Correct Answer: C
Rationale: Vitamin K is administered as an antidote for warfarin toxicity.
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A nurse is providing education to a patient with iron deficiency anemia who has been prescribed iron supplements. What should the nurse include in health education?
- A. Take the iron with dairy products to enhance absorption.
- B. Increase the intake of vitamin E to enhance absorption.
- C. Iron will cause the stools to darken in color.
- D. Limit foods high in fiber due to the risk for diarrhea.
Correct Answer: C
Rationale: The nurse will inform the patient that iron will cause the stools to become dark in color. Iron should be taken on an empty stomach, as its absorption is affected by food, especially dairy products. Patients should be instructed to increase their intake of vitamin C to enhance iron absorption. Foods high in fiber should be consumed to minimize problems with constipation, a common side effect associated with iron therapy.
A critical care nurse is caring for a patient with autoimmune hemolytic anemia. The patient is not responding to conservative treatments, and his condition is now becoming life threatening. The nurse is aware that a treatment option in this case may include what?
- A. Hepatectomy
- B. Vitamin K administration
- C. Platelet transfusion
- D. Splenectomy
Correct Answer: D
Rationale: A splenectomy may be the course of treatment if autoimmune hemolytic anemia does not respond to conservative treatment. Vitamin K administration is treatment for vitamin K deficiency and does not resolve anemia. Platelet transfusion may be the course of treatment for some bleeding disorders. Hepatectomy would not help the patient.
An intensive care nurse is aware of the need to identify patients who may be at risk of developing disseminated intravascular coagulation (DIC). Which of the following ICU patients most likely faces the highest risk of DIC?
- A. A patient with extensive burns
- B. A patient who has a diagnosis of acute respiratory distress syndrome
- C. A patient who suffered multiple trauma in a workplace accident
- D. A patient who is being treated for septic shock
Correct Answer: D
Rationale: Sepsis is a common cause of DIC. A wide variety of acute illnesses can precipitate DIC, but sepsis is specifically identified as a cause.
A patient with a recent diagnosis of ITP has asked the nurse why the care team has not chosen to administer platelets, stating, â??I have low platelets, so why not give me a transfusion of exactly what I'm missing?â?? How should the nurse best respond?
- A. Transfused platelets usually aren't beneficial because they're rapidly destroyed in the body.
- B. A platelet transfusion often blunts your body's own production of platelets even further.
- C. Finding a matching donor for a platelet transfusion is exceedingly difficult.
- D. A very small percentage of the platelets in a transfusion are actually functional.
Correct Answer: A
Rationale: Despite extremely low platelet counts, platelet transfusions are usually avoided. Transfusions tend to be ineffective not because the platelets are nonfunctional but because the patient's antiplatelet antibodies bind with the transfused platelets, causing them to be destroyed. Matching the patient's blood type is not usually necessary for a platelet transfusion. Platelet transfusions do not exacerbate low platelet production.
A patient's electronic health record notes that he has previously undergone treatment for secondary polycythemia. How should this aspect of the patient's history guide the nurse's subsequent assessment?
- A. The nurse should assess for recent blood donation.
- B. The nurse should assess for evidence of lung disease.
- C. The nurse should assess for a history of venous thromboembolism.
- D. The nurse should assess the patient for impaired renal function.
Correct Answer: B
Rationale: Any reduction in oxygenation, such as lung disease, can cause secondary polycythemia. Blood donation does not precipitate this problem and impaired renal function typically causes anemia, not polycythemia. A history of VTE is not a likely contributor.