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DHA Vascular Interventional Radiography (DHA-VI) Practice Tests & Test Prep - Topics


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Understanding what is on the DHA Vascular Interventional Radiography exam is crucial step in preparing for the exam. You will need to have an understanding of the testing domain (topics covered) to be sure you are studing the correct information.

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There is no doubt that this is a strategic step in achieving certification and advancing your career.

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DHA Vascular Interventional Radiography Exam Blueprint

Understanding the exact breakdown of the DHA Vascular Interventional Radiography test will help you know what to expect and how to most effectively prepare. The DHA Vascular Interventional Radiography has 70 multiple-choice questions The exam will be broken down into the sections below:

DHA Vascular Interventional Radiography Exam Blueprint
Domain Name % Number of
Questions
Equipment and Instrumentation 15% 12
Patient Care 17% 13
Procedures
     Neurologic 8% 6
     Abdominal 16% 12
     GU and GI, non vascular 10% 8
     Peripheral 12% 9
     Dialysis 7% 5
     Venous Access 5% 4

DHA Vascular Interventional Radiography - Exam Topics Sample Questions

Which of the following is a risk of a head angiogram?

Correct Answer:
all of the above.


an angiogram of the head, also known as a cerebral angiogram, is a diagnostic procedure used to visualize the blood vessels in and around the brain. this procedure involves the injection of a contrast dye into the blood vessels, which is then imaged using x-ray technology to assess issues such as blockages, malformations, or aneurysms. while it provides valuable information for diagnosing and planning treatment for various conditions, it carries potential risks, just like any medical procedure.

one of the primary risks associated with a head angiogram is damage to the blood vessels. this can occur when the catheter, a thin tube used to deliver the contrast dye into the blood vessels, inadvertently injures the vessel walls. such damage can lead to complications such as bleeding, formation of a hematoma, or even a pseudoaneurysm.

another significant risk is the possibility of an allergic reaction to the contrast dye used during the angiogram. though rare, some patients may experience mild to severe allergic responses, which can manifest as anything from skin rashes and itching to more severe reactions like anaphylactic shock. therefore, it is crucial to inform healthcare providers about any known allergies to contrast materials or iodine, which is commonly present in these dyes.

bleeding at the site where the needle was inserted to access the blood vessel is another common risk. this is usually minor and can be controlled with simple pressure, but in some cases, it might require further medical attention if the bleeding is persistent or if a large hematoma forms.

the kidneys can also be affected by the contrast dye, particularly in individuals who already have preexisting kidney conditions or reduced kidney function. the dye can cause or exacerbate renal impairment, a condition known as contrast-induced nephropathy. adequate hydration before and after the procedure and using the least amount of contrast necessary are measures taken to mitigate this risk.

lastly, there is a general risk of damage to tissues caused by radiation exposure during the x-ray imaging. although the amount of radiation in a single procedure is usually within safe limits, it's important for patients who undergo multiple radiological examinations to keep track of their cumulative exposure.

given these potential risks, the option of "all of the above" is correct when considering the risks associated with a head angiogram. although these risks can sound concerning, the likelihood of serious complications is low, and the procedure is generally safe when conducted by experienced medical professionals in a controlled environment. decisions regarding undergoing a head angiogram should be made in consultation with healthcare providers, taking into account the specific medical history and condition of the patient.

Permanent IVC filters are which of the following?

Correct Answer:
safe to be left in place. 


permanent ivc filters fall under a specific category of medical devices designed for placement in the inferior vena cava, a major vein that carries blood from the lower parts of the body back to the heart. these filters are intended to prevent pulmonary embolism by catching large clot fragments that break loose from leg veins before they can reach the lungs. permanent ivc filters, as the name suggests, are intended to remain in the body indefinitely.

unlike temporary or retrievable filters, which are designed to be removed once the risk of pulmonary embolism has reduced, permanent ivc filters are designed to be a long-term solution. they are typically used in patients who cannot manage their risk of clots with medication alone, or in those who have had recurrent issues despite other treatments. the design and materials used in permanent ivc filters are chosen to minimize the risks of long-term complications, such as filter fracture or migration.

saying that permanent ivc filters are "safe to be left in place" means that these devices are engineered to be biocompatible and secure for long-term residence within the vein. they undergo rigorous testing and regulatory review to ensure they meet safety standards appropriate for their permanent status in the body. however, this does not mean that they are without risks; long-term studies have shown that all ivc filters, including permanent types, can potentially cause complications such as vein perforation, filter migration, or occlusion of the inferior vena cava.

the decision to use a permanent ivc filter involves careful consideration of the patient's specific medical conditions, risk factors, and overall health profile. it is typically considered when other less invasive measures are insufficient or inappropriate. thus, while permanent ivc filters are indeed designed and approved to be safe for permanent placement, they are generally recommended only after thorough evaluation by a healthcare provider specializing in such treatments.