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","B","C","D"]
Explanation
Withhold food and oral fluids before the procedure
Withholding food and oral fluids before the procedure is essential to prevent complications during the cardiac catheterization. The client is typically NPO (nothing by mouth) for a specified period before the procedure.
B. Review medications the client has taken in the last 24 hours
Reviewing the client's medications is crucial to ensure that any medications affecting coagulation or blood vessels are appropriately managed before the cardiac catheterization.
C. Verify that written consent has been obtained
Verifying the presence of written consent is a critical step to confirm that the client has been adequately informed about the procedure, its risks, and benefits, and has given consent for the cardiac catheterization.
D. Check for iodine sensitivity
Checking for iodine sensitivity is important because iodinated contrast dye is commonly used during cardiac catheterization. Allergies or sensitivities to iodine contrast must be identified to prevent adverse reactions.
E. Administer all ordered oral medications
Administration of oral medications before the procedure depends on the specific medications and the healthcare provider's instructions. Some medications may be held, while others may be continued as prescribed.

Correct Answer is A
Explanation
A. "A single elevated blood pressure does not confirm hypertension. A diagnosis of hypertension requires two or more elevated readings taken by your physician before a diagnosis can be made."
This response emphasizes the need for multiple elevated readings for a diagnosis of hypertension. It educates the individual about the diagnostic criteria and encourages them to seek further evaluation from their physician.
B. "We will need to reevaluate your blood pressure because your age places you at high risk for hypertension."
This response might be seen as implying that age alone is a significant factor in determining hypertension, which may not be accurate. While age is a risk factor, the emphasis should be on the need for multiple readings and a physician's evaluation rather than attributing it solely to age.
C. "Hypertension is prevalent among men: it is fortunate we caught this during your routine examination."
This response suggests that the elevated blood pressure is automatically assumed to be hypertension based on gender. It is important to avoid making assumptions and instead focus on the need for proper evaluation and multiple readings for a hypertension diagnosis.
D. "You have no need to worry. Your pressure is probably elevated because you are being tested."
This response dismisses the individual's concerns and attributes the elevated blood pressure solely to the testing situation. While stress or anxiety can influence blood pressure readings, it's essential to address the need for further evaluation and not completely disregard the possibility of hypertension.
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