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AACN CCRN-Adult Exam Syllabus Topics:
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AACN CCRN (Adult) - Direct Care Eligibility Pathway Sample Questions (Q544-Q549):
NEW QUESTION # 544
A critical care nurse is providing teaching to a patient about a TAVR they are about to undergo. Which of the following statements made by the patient indicates the need for further teaching?
Answer: B
Explanation:
A Transcatheter Aortic Valve Replacement (TAVR) involves replacement of the aortic valve using catheters inserted into the heart through blood vessels. Patients who undergo this procedure are likely to be discharged within a couple of days and will not require chest tubes like patients who undergo open heart surgery.
NEW QUESTION # 545
The critical care nurse suspects that a patient may be developing a thyrotoxic crisis. Which of the following considerations for this condition is CORRECT?
Answer: C
Explanation:
Thyroid storm or thyrotoxic crisis is a life-threatening emergency with mortality up to 30% (highly likely to be fatal). It is a rare condition in developed countries, typically seen with undiagnosed or under- treated hyperthyroidism.
If a patient is experiencing this condition, emergency management involves immediate administration of beta-blockers (propranolol, esmolol) to blunt the sympathetic nervous system receptors, plus medications that block thyroid synthesis and release of more thyroid hormone (methimazole, propylthiouracil).
Synthroid is the main component of treating hypothyroidism; therefore, it would only exacerbate a thyrotoxic crisis.
NEW QUESTION # 546
Which of the following is MOST LIKELY to be a congenital condition?
Answer: A
Explanation:
Hypertrophic obstructive cardiomyopathy (HOCM) is considered a congenital cardiomyopathy. The diagnosis of HOCM is made if hypertrophy of the intraventricular septum is present.
Dilated cardiomyopathy is typically caused by coronary artery disease (CAD).
Restrictive cardiomyopathy is due to ventricular fibrosis, typically due to a pathological condition. It is the least common of the cardiomyopathies.
Infective endocarditis is an acquired valve disorder, often leading to gradual fibrotic changes of the valve and calcification of the valve cusps. Shortening of the chordate tendineae also may occur.
NEW QUESTION # 547
Which of the following is the primary carrier of oxygen to body tissues?
Answer: B
Explanation:
Hemoglobin is the primary carrier of oxygen to body tissues. As the number of red blood cells changes, so does the hemoglobin content. A decline in hemoglobin to a level as low as seven g/dL may be well- tolerated in some patients. In others, this decline can result in significant symptoms.
NEW QUESTION # 548
If a patient has a history of emphysema, which of the following values would MOST LIKELY be seen on Arterial Blood Gases (ABGs)?
Answer: A
Explanation:
In the patient with emphysema, a form of Chronic Obstructive Pulmonary Disease (COPD), there is a progressive destruction of the inner walls of the alveolar sacs, resulting in large blebs with a reduced surface area for gas exchange. Since there is a chronically restrictive state, the patient is generally in a state of hypercapnia (PaCO2 > 45 mmHg, HCO3 > 26 mEq/L). The kidneys attempt to compensate by increasing the amount of HCO3 in the body until normal or near-normal pH levels occur. This mechanism creates a compensated respiratory acidosis.
NEW QUESTION # 549
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