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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A reason : Setting a goal body weight within 25% of the ideal body weight can be misleading. The ideal body weight should be determined based on body mass index (BMI), considering the individual's height and weight. A BMI of 18.5 to 24.9 is considered normal.
Choice B reason : This is a general guideline for alcohol consumption, but for individuals with hypertension, it is often recommended to limit alcohol intake even further to help manage blood pressure
Choice C reason : This is a key recommendation for managing hypertension. Reducing sodium intake helps lower blood pressure and is a widely accepted guideline
Choice D reason : Monitoring potassium levels is crucial when taking thiazide diuretics because these medications can decrease potassium levels in the blood, leading to hypokalemia.
Correct Answer is B
Explanation
Choice A reason: Cough is not commonly associated with atenolol. Atenolol is a beta-blocker used to treat hypertension and is less likely to cause respiratory side effects compared to some other classes of antihypertensive medications.
Choice B reason: Bradycardia, or a slower than normal heart rate, is a well-documented adverse effect of atenolol. Atenolol works by blocking beta-1 receptors in the heart, which can reduce the heart rate. Normal heart rate ranges for infants (1 to 11 months old) are 80-160 beats per minute (BPM), and for toddlers (1-2 years old), it's 80-130 BPM. Bradycardia would be defined as a heart rate below these normal ranges. It is important for patients starting atenolol to monitor their pulse regularly and report any significant decrease in heart rate to their healthcare provider.
Choice C reason: While constipation can be a side effect of many medications, it is not a common adverse effect of atenolol. Atenolol does not typically affect the gastrointestinal system to the extent that it causes constipation.
Choice D reason: Headache is not a typical adverse effect of atenolol. While headaches can occur for a variety of reasons, they are not directly linked to the pharmacological action of atenolol on the cardiovascular system.
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.