A nurse is assessing the therapeutic International Normalized Ratio (INR) range for a patient receiving Warfarin. Which INR range below is therapeutic?
2.0-3.0
4.0-5.0
1.0-2.0
3.0-4.9
The Correct Answer is A
Choice A reason : The therapeutic INR range for a patient on Warfarin, especially for conditions such as atrial fibrillation, venous thromboembolism, and for the prevention of thrombosis in patients with prosthetic heart valves, is typically 2.0-3.0. This range balances the risk of clotting with the risk of bleeding. An INR of 2.0-3.0 means that the blood is taking twice to three times as long as normal blood to clot, which is the desired effect of the medication in preventing harmful clots.
Choice B reason : An INR range of 4.0-5.0 is generally considered too high for most therapeutic purposes and increases the risk of bleeding complications. This range might be appropriate in very specific clinical situations, such as for patients with mechanical heart valves who may require a slightly higher INR, but it is not the standard therapeutic range.
Choice C reason : An INR range of 1.0-2.0 is below the therapeutic range for patients on Warfarin. This range would not provide sufficient anticoagulation and would leave the patient at risk for thrombotic events.
Choice D reason : An INR range of 3.0-4.9 is higher than the standard therapeutic range and could lead to an increased risk of bleeding. While some patients with mechanical heart valves in the mitral position may require an INR up to 3.5, an INR higher than this is usually not necessary and could be dangerous.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","C","D"]
Explanation
Choice A reason : Dyspnea, or difficulty breathing, is a common symptom of left-sided heart failure. It occurs because the heart is unable to pump efficiently, leading to a backup of fluid in the lungs, which can cause shortness of breath.
Choice B reason : Jugular vein distention is typically associated with right-sided heart failure, not left-sided. It occurs when there is an increased pressure in the right atrium, leading to visible bulging of the neck veins.
Choice C reason : Orthopnea, or difficulty breathing while lying flat, is another symptom of left-sided heart failure. Fluid accumulation in the lungs makes it difficult for the patient to breathe without elevation, hence they may need to sleep with extra pillows.
Choice D reason : Crackles, which are heard during lung auscultation, are indicative of fluid accumulation in the alveoli due to the inefficiency of the left side of the heart to pump blood, leading to pulmonary congestion.
Choice E reason : Tachycardia, or rapid heartbeat, can be a response to left-sided heart failure as the body attempts to compensate for the decreased cardiac output by increasing the heart rate to maintain adequate blood flow.
Choice F reason : Gastrointestinal bloating is more commonly associated with right-sided heart failure due to systemic venous congestion leading to fluid accumulation in the abdominal organs and tissues.
Correct Answer is A
Explanation
Choice A reason: Walking is a highly beneficial activity for individuals with peripheral vascular disease (PVD). It helps improve circulation, which can be compromised in PVD due to narrowed or blocked blood vessels. Regular walking can lead to the development of collateral circulation, which is the formation of new blood vessels that bypass the blockages and improve blood flow to the affected areas. This can help alleviate symptoms such as pain and cramping during walking, known as claudication. Walking should be done at a pace that is comfortable and should be stopped if pain occurs. Over time, walking can increase the distance a person with PVD can walk without pain.
Choice B reason: Compression stockings are often recommended for individuals with PVD to help improve blood flow. Knee-length stockings exert pressure on the lower legs, helping to reduce edema and discomfort associated with PVD. They can also help prevent deep vein thrombosis, a potential complication of PVD.
Choice C reason: Elevating the legs can help reduce swelling and improve venous return in clients with PVD. It is recommended to elevate the legs above the level of the heart to maximize the effect. This can be done by placing pillows under the legs while lying down.
Choice D reason: Shopping for shoes in the morning is advised because feet can swell throughout the day, especially in clients with PVD. Fitting shoes in the morning can help ensure a more accurate fit, reducing the risk of pressure points that could lead to skin breakdown and ulcers.
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