A patient presents with fatigue, fever, and night sweats. An echocardiogram showed vegetation.
Which disease is described?
Pericarditis
Myocarditis
Endocarditis
Stenosis
The Correct Answer is C
This condition is an infection of the inner lining of the heart chambers and valves, which can cause vegetation to form on the valve surfaces. Vegetations are masses of microorganisms, inflammatory cells, and fibrin that adhere to the valve leaflets and can interfere with their function. The symptoms of endocarditis may include fatigue, fever, night sweats, chills, weight loss, or heart murmur.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Spina bifida is a birth defect that occurs when the neural tube, which forms the brain and spinal cord, does not close properly during early fetal development. This can result in an opening in the spine that exposes the spinal cord and nerves, leading to various complications such as paralysis, bladder and bowel problems, hydrocephalus, and learning difficulties. Folic acid is a B vitamin that is essential for the formation of the neural tube and other organs in the embryo. Inadequate folic acid intake before and during pregnancy can increase the risk of spina bifida and other neural tube defects.
Correct Answer is C
Explanation
The renin-angiotensin system (RAS) is a hormonal system that regulates blood pressure and fluid balance. When blood pressure is low, the kidneys secrete renin, which converts angiotensinogen into angiotensin I, which is then converted into angiotensin II by angiotensin-converting enzyme (ACE). Angiotensin II is a potent vasoconstrictor that narrows blood vessels and increases blood pressure. It also stimulates the release of aldosterone, which increases sodium and water retention and further raises blood pressure. When the RAS is overactivated, it can lead to a hypertensive crisis, which is a severe elevation of blood pressure that can damage organs and cause stroke, heart attack, or kidney failure.
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