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


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DHA Cardiac Interventional Radiography - Reviews


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See why our users from 154 countries love us for their exam prep! Including 185 reviews for the DHA Cardiac Interventional Radiography exam.

Exam Edge is an industry leader in online test prep. We work with institutional partners to offer a wide array of practice tests that will help you prepare for your big exam. No matter how niche your field of interest might be, we're here to help you prepare for test day.

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DHA Cardiac Interventional Radiography - Test Reviews Sample Questions

Of the following, what are intra-aortic balloon pumps used for?

Correct Answer:
to both decrease the heart’s workload and increase blood flow to the heart and body. 


intra-aortic balloon pumps (iabps) are specialized devices used in medical settings, particularly in cardiology and critical care, to support the functioning of the heart. primarily, these devices are utilized to simultaneously decrease the heart's workload and to increase blood flow to both the heart and the rest of the body. this dual function is crucial in treating patients with specific cardiac conditions, such as acute myocardial infarction (heart attack), heart failure, or cardiogenic shock, where the heart's ability to pump blood efficiently is compromised.

the mechanism of action of an iabp involves the rhythmic inflation and deflation of a balloon attached to a catheter, which is inserted into the aorta — the main artery that carries blood from the heart to the rest of the body. the timing of the balloon's inflation and deflation is meticulously synchronized with the cardiac cycle. during diastole, when the heart muscle relaxes, the balloon inflates. this inflation leads to an increase in aortic pressure, which improves blood flow through the coronary arteries to the heart muscles themselves. enhanced coronary blood flow is vital in conditions where the heart's demand for oxygen and nutrients is elevated.

conversely, during systole, when the heart contracts to pump blood to the body, the balloon deflates rapidly. this deflation reduces the resistance against which the heart must pump, effectively decreasing the workload on the heart. by doing so, the iabp reduces myocardial oxygen demand and helps prevent further strain on the heart, which can be critical in allowing the heart to recover or maintain function during periods of severe stress.

the insertion of the iabp is typically performed in a hospital setting, such as in the catheterization lab or sometimes at the bedside in an intensive care unit, under continuous monitoring. the correct positioning of the catheter within the aorta is critical to ensure the effectiveness of the balloon pump and to minimize complications.

overall, the use of intra-aortic balloon pumps is a vital intervention in the management of severe cardiac conditions. by both decreasing the workload of the heart and increasing blood flow to critical areas, iabps play a significant role in stabilizing patients, improving their outcomes, and providing a bridge to more definitive treatments such as cardiac surgery or advanced heart failure therapies.

A patient who takes a diuretic drug should be evaluated for:

Correct Answer:
an excessive loss of fluids from the body


diuretic drugs are commonly prescribed to help remove excess fluid from the body, often used in conditions such as congestive heart failure, hypertension, and certain kidney disorders. these medications function by increasing the amount of urine produced by the kidneys, which helps to flush out water and sodium.

the primary risk associated with diuretic usage is the excessive loss of body fluids. this can lead to dehydration, a condition where the body loses more water than it takes in. symptoms of dehydration can include thirst, reduced urine output, dry skin, fatigue, and dizziness. if severe, dehydration can affect kidney function and overall bodily operations.

moreover, alongside water, diuretics can also cause the body to lose electrolytes, such as potassium, sodium, and chloride, which are crucial for normal cell and organ functions. electrolyte imbalance can lead to problems such as muscle weakness, cramping, fatigue, irregular heartbeats, and, in extreme cases, seizures.

due to the potential for these serious side effects, it is important for healthcare providers to monitor patients on diuretic therapy closely. this monitoring might include regular checks of blood pressure, electrolyte levels, and overall hydration status to ensure that the patient remains safe while using these medications.

additionally, patients on diuretics might be advised to adjust their fluid intake or modify their diet to compensate for the loss of electrolytes, particularly potassium. potassium-rich foods like bananas, oranges, and potatoes might be recommended. in some cases, potassium supplements may also be prescribed.

understanding and managing the balance of fluid and electrolytes is crucial in patients taking diuretics to avoid complications such as hypotension (abnormally low blood pressure), which can lead to shock if not addressed promptly. continuous patient education on symptoms of dehydration and when to seek medical help plays a vital role in the safe use of diuretics.