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 B
Explanation
A. Intermittent claudication:
Intermittent claudication is more commonly associated with peripheral arterial insufficiency rather than venous insufficiency. It is caused by inadequate blood flow to the muscles during activity, resulting in cramping or pain that typically resolves with rest.
B. Brownish discoloration to the legs:
Brownish discoloration to the legs, often referred to as hemosiderin staining, is a common finding in peripheral venous insufficiency. It occurs due to the breakdown of red blood cells and the deposition of hemosiderin in the tissues, especially around the ankles.
C. Weak or absent pedal pulses:
Weak or absent pedal pulses are more indicative of peripheral arterial insufficiency rather than venous insufficiency. Peripheral arterial disease can result in decreased blood flow to the extremities, leading to diminished pulses.
D. Unequal peripheral pulses between extremities:
Unequal peripheral pulses between extremities are also more suggestive of arterial insufficiency. Conditions such as atherosclerosis or arterial embolism can cause variations in pulses between different limbs.

Correct Answer is D
Explanation
A. Diaphragmatic breathing:
Diaphragmatic breathing, also known as abdominal or deep breathing, is a normal and effective way of breathing. It involves the contraction and relaxation of the diaphragm, allowing for efficient lung expansion. This is a healthy and efficient breathing technique.
B. Controlled breathing:
Controlled breathing refers to a deliberate and regulated breathing pattern. It can include techniques such as paced breathing, where the individual consciously controls the rate and depth of their breaths. Controlled breathing is generally considered a positive and intentional approach to managing respiratory function.
C. Pursed-lip breathing:
Pursed-lip breathing is a breathing technique where the individual breathes in through the nose and exhales through pursed lips. This method is often taught to individuals with certain respiratory conditions, such as chronic obstructive pulmonary disease (COPD), to help improve lung function and alleviate shortness of breath. Pursed-lip breathing can be a helpful strategy in specific situations.
D. Use of accessory muscles:
The use of accessory muscles indicates that the person is experiencing increased difficulty in breathing. Accessory muscles, such as the neck and shoulder muscles, are not typically heavily involved in breathing under normal circumstances. When these muscles are visibly working during breathing, it suggests increased respiratory effort and can be a sign of respiratory distress or difficulty.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.
