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?
Factor VIII
Vitamin K
IVIG
Factor X
The Correct Answer is B
A. Factor VIII: Factor VIII is a component of the clotting cascade, but it is not the antidote for warfarin. Factor VIII is used in the treatment of hemophilia A.
B. Vitamin K: This is the correct answer. Vitamin K is the antidote for warfarin overdose. It helps in the synthesis of clotting factors.
C. IVIG (Intravenous Immunoglobulin): IVIG is not an antidote for warfarin. It is used for various immune-related conditions.
D. Factor X: Factor X is also a clotting factor, but it is not the antidote for warfarin. Factor Xa inhibitors are used as anticoagulants.

Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. “I will need to stop smoking because the nicotine causes less blood to flow to my hands and feet.”
Explanation: This statement reflects an understanding of the association between smoking and reduced blood flow, particularly due to nicotine's vasoconstrictive effects.
B. “The older I get the higher my risk for peripheral arterial disease gets.”
Explanation: While age is a non-modifiable risk factor for PAD, it is not a statement indicating a change in behavior to address risk factors. It is correct information but doesn't involve a proactive approach to risk reduction.
C. “Since my family is from Italy, I have a higher risk of developing peripheral arterial disease.”
Explanation: Family history is a non-modifiable risk factor, and the statement correctly identifies this risk factor. However, it doesn't address modifiable factors or actions to reduce risk.
D. “I will need to increase the amount of green leafy vegetables I eat to lower my cholesterol levels.”
Explanation: This statement demonstrates an understanding of a dietary modification to lower cholesterol levels, which is a positive step toward reducing a modifiable risk factor for PAD.
Correct Answer is A
Explanation
A. Frequent change of position:
Frequent changes in position help prevent pooling of secretions and promote lung expansion. This simple and cost-effective measure is important in preventing complications related to immobility, such as pneumonia and atelectasis. It aids in maintaining optimal respiratory function.
B. Antibiotics: Antibiotics are used to treat bacterial infections and would not directly address the risks associated with decreased mobility.
C. Oxygen humidification: While oxygen therapy may be necessary in some cases, humidification is typically used to prevent drying of mucous membranes and is not a primary intervention for preventing complications of decreased mobility.
D. Chest physiotherapy: Chest physiotherapy involves techniques to mobilize respiratory secretions and may be indicated in specific situations. However, it is not as simple and cost-effective as frequent changes in position.
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