A client is being discharged on warfarin therapy.
What discharge instructions is the nurse required to provide? (Select all that apply.)
Dietary restrictions.
Driving restrictions.
Follow-up laboratory monitoring.
Possible drug-drug interactions.
Reason to take medication.
Wearing a Medic Alert bracelet.
Correct Answer : A,C,D,E,F
Choice A rationale
Warfarin is a vitamin K antagonist that inhibits the synthesis of vitamin K-dependent clotting factors II, VII, IX, and X. Clients must be instructed to maintain a consistent intake of vitamin K-rich foods, such as leafy green vegetables, to avoid fluctuations in warfarin's anticoagulant effect and to maintain a stable INR.
Choice B rationale
Warfarin therapy itself does not impose driving restrictions. The primary concern is the bleeding risk associated with the medication, which would not typically affect a person's ability to drive. Driving is not a discharge instruction required specifically because of the medication itself.
Choice C rationale
Regular laboratory monitoring of the International Normalized Ratio (INR) is essential to ensure the warfarin dosage is therapeutic and safe. The INR normal range is 0.8-1.2. The therapeutic range for warfarin is typically 2.0-3.0 for most indications. Clients need to understand the importance of these appointments.
Choice D rationale
Warfarin is highly protein-bound and metabolized by the cytochrome P450 enzyme system, making it susceptible to numerous drug-drug interactions. Educating the client about potential interactions with other medications, including over-the-counter drugs, is crucial to prevent either bleeding or clotting episodes.
Choice E rationale
A client's adherence to a medication regimen is significantly enhanced when they understand the purpose of the treatment. Explaining that warfarin prevents dangerous blood clots in conditions like atrial fibrillation or deep vein thrombosis helps the client appreciate the importance of consistent daily dosing.
Choice F rationale
Wearing a Medic Alert bracelet is a critical safety measure for clients on warfarin. In an emergency, this bracelet immediately informs healthcare providers that the person is on an anticoagulant, allowing them to make informed decisions about care and to recognize signs of potential bleeding complications.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","B","D"]
Explanation
Choice A rationale
An elevated low-density lipoprotein (LDL-C) level is a significant risk factor for atherosclerosis because LDL-C is the primary carrier of cholesterol to the tissues. High levels lead to the deposition of cholesterol within the arterial walls, forming atherosclerotic plaques. These plaques narrow arteries, impede blood flow, and can rupture, leading to thrombosis and acute cardiovascular events. A normal LDL-C level is typically less than 100 mg/dL.
Choice B rationale
Decreased levels of high-density lipoprotein cholesterol (HDL-C) are concerning because HDL-C plays a protective role in the cardiovascular system. HDL-C is responsible for reverse cholesterol transport, a process where it removes excess cholesterol from the arterial walls and transports it back to the liver for excretion. Low levels impair this protective mechanism, allowing cholesterol accumulation and plaque formation. A normal HDL-C level is typically above 40 mg/dL for men and 50 mg/dL for women.
Choice C rationale
Asian ethnicity is not considered an independent risk factor for atherosclerosis. While certain populations may have varying risk profiles due to genetic and lifestyle factors, ethnicity alone does not directly predispose an individual to the condition in the same manner as modifiable factors like dyslipidemia or smoking. A comprehensive risk assessment relies on established clinical and lifestyle factors, not solely on a person’s racial background.
Choice D rationale
A history of smoking is a major, modifiable risk factor for atherosclerosis. The chemicals in cigarette smoke damage the endothelium, the inner lining of blood vessels, making it more permeable to cholesterol. Smoking also increases inflammation, promotes platelet aggregation, and lowers HDL-C levels. These combined effects accelerate the formation and progression of atherosclerotic plaques, significantly increasing the risk of cardiovascular events like myocardial infarction and stroke.
Choice E rationale
A single blood pressure reading of 142/92 mm Hg, while elevated, is not sufficient for a diagnosis of hypertension or to be considered a definitive risk factor. Hypertension is diagnosed based on multiple elevated readings over time. While this reading is concerning, a single measurement can be influenced by various factors. The finding warrants further monitoring, but it does not represent a chronic risk factor until a pattern of sustained high blood pressure is established
Correct Answer is ["167"]
Explanation
Step 1 is to calculate the total infusion time in hours: 0700 - 1900 = 12 hours.
Step 2 is to calculate the infusion rate in mL/hour: 2000 mL ÷ 12 hours = 166.666. mL/hour.
Step 3 is to round the infusion rate to the nearest whole number as is common practice for IV pumps: 167 mL/hour. The final calculated infusion rate is 167 mL/hour.
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