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DHA Cardiac Interventional Radiography (DHA-CI) Practice Exams & Test Prep - Exam Info



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DHA Cardiac Interventional Radiography - Additional Information

At ExamEdge.com, we focus on making our clients' career dreams come true by offering world-class practice tests designed to cover the same topics and content areas tested on the actual Dubai Health Authority DHA Cardiac Interventional Radiography (DHA-CI) Certification Exam. Our comprehensive DHA Cardiac Interventional Radiography practice tests are designed to mimic the actual exam. You will gain an understanding of the types of questions and information you will encounter when you take your Dubai Health Authority DHA Cardiac Interventional Radiography Certification Exam. Our DHA Cardiac Interventional Radiography Practice Tests allow you to review your answers and identify areas of improvement so you will be fully prepared for the upcoming exam and walk out of the test feeling confident in your results.

Because our practice tests are web-based, there is no software to install and no need to wait for a shipment to arrive to start studying. Your DHA Cardiac Interventional Radiography practice tests are available to you anytime from anywhere on any device, allowing you to study when it works best for you. There are 20 practice tests available, each with 70 questions and detailed explanations to help you study. Every exam is designed to cover all of the aspects of the DHA Cardiac Interventional Radiography exam, ensuring you have the knowledge you need to be successful!

DHA Cardiac Interventional Radiography - Additional Info Sample Questions

What should be withheld if a patient’s INR is abnormal?
 

Correct Answer:
warfarin.


the international normalized ratio (inr) is a critical measurement used to determine the clotting tendency of blood, comparing it to an average. a higher than normal inr indicates a higher risk of bleeding, while a lower inr suggests a higher risk of clotting. this test is especially important for patients taking anticoagulants such as warfarin, as it helps to guide dosing to maintain the balance between preventing clots and avoiding excessive bleeding.

warfarin, a commonly used anticoagulant, functions by inhibiting the vitamin k-dependent clotting factors, which are essential for blood coagulation. when a patient's inr is higher than the therapeutic range, it suggests that the blood is too thin, which increases the risk of bleeding. in such cases, it is crucial to withhold warfarin to reduce this risk. the treatment plan may be adjusted by either skipping a dose or reducing the dosage, depending on the inr value and the patient's clinical scenario.

conversely, if the inr is below the desired range, indicating that the blood is too thick and the risk of clotting is increased, the dose of warfarin may need to be increased under careful supervision to prevent thrombotic events. however, sudden changes in inr can be dangerous, so incremental adjustments and frequent monitoring are essential.

in situations where warfarin needs to be withheld due to an excessively high inr, alternatives such as heparin might be used temporarily. heparin acts quickly and its effects are reversible, which makes it a suitable bridge therapy during warfarin dose adjustment or temporary discontinuation. heparin's anticoagulant effect does not rely on inhibiting vitamin k-dependent factors, thus it works through a different mechanism, complementing the effects of warfarin during the bridging process.

other interventions might include administration of vitamin k if the inr is excessively high. vitamin k can help to reverse the effect of warfarin, promoting clotting factor production and helping to stabilize the patient's inr. however, it is usually reserved for cases of significant over-anticoagulation or active bleeding.

lastly, it's important to note that the decision to adjust or withhold warfarin should always be made by a healthcare provider, based on a comprehensive assessment of the patient's overall health, risk factors, and specific circumstances. regular monitoring and appropriate adjustments of warfarin, guided by inr readings, are crucial to prevent both bleeding and thrombotic risks.