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

Answer and Explanation

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.

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Correct Answer is D

Explanation

A. The client now has developed a myocardial infarction:

A myocardial infarction (heart attack) is characterized by prolonged ischemia leading to damage or death of heart muscle cells. While the symptoms described could be concerning for a heart attack, the term "myocardial infarction" would typically imply a more sustained and severe ischemic event.

B. The client has developed Prinzmetal's angina:

Prinzmetal's angina, also known as variant angina, is characterized by chest pain that usually occurs at rest and is caused by vasospasm of the coronary arteries. The given scenario does not specifically describe the typical characteristics of Prinzmetal's angina.

C. The client now has stable angina:

Stable angina typically follows a predictable pattern and is relieved with rest and/or nitroglycerin. However, the scenario describes a change in the usual pattern of chest pain.

D. The client now has unstable angina:

Unstable angina is characterized by a change in the usual pattern of stable angina, often occurring at rest or with minimal exertion and not relieved by usual measures. This option seems to align with the information provided.

Correct Answer is ["125"]

Explanation

To calculate the amount of mL that the client should receive, we need to use the formula:

mL = (g * 5 mL) / mg

where g is the ordered dose of the medication, mg is the concentration of the medication, and mL is the volume of the solution.

Plugging in the given values, we get:

mL = (4 g * 5 mL) / 160 mg

Simplifying, we get:

mL = 0.125 g/mL

Multiplying by 1000 to convert grams to milligrams, we get:

mL = 125 mg/mL

Therefore, the client should receive 125 mL of the solution.

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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?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

Correct Answer is D

Explanation

A client is ordered to receive 4 g of a medication. The pharmacy has the medication available in a concentration of 160 mg per 5 mL. How many mL should the client receive?

Correct Answer is ["125"]

Explanation

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