A patient presents with fatigue, fever, and night sweats. An echocardiogram showed vegetation.

Which disease is described?

Pericarditis

Myocarditis

Endocarditis

Stenosis

Answer and Explanation

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.

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Correct Answer is C

Explanation

Vitamin B12 is a water-soluble vitamin that is involved in the production of red blood cells, DNA synthesis, and nerve function. Vitamin B12 deficiency can cause anemia, neurological problems, and cognitive impairment. Vitamin B12 deficiency can be attributed to alcoholism because alcohol interferes with the absorption and metabolism of vitamin B12 in the stomach and liver. Alcohol also damages the lining of the intestines, where vitamin B12 is absorbed from food sources.

A. Lower number of complement proteins B. Decreased populations of naïve T cells C. Impaired primary defenses D. Insufficient time outdoors

Correct Answer is B

Explanation

Naïve T cells are a type of white blood cell that has not encountered a specific antigen before and are ready to respond to new infections. As people age, the number of naïve T cells decreases due to the shrinking of the thymus gland, which produces and matures T cells. This reduces the ability of the immune system to recognize and fight new pathogens and lowers the effectiveness of vaccines.

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A patient presents with fatigue, fever, and night sweats. An echocardiogram showed vegetation. Which disease is described?

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Naxlex Comprehensive Predictor Exams

Which disease can vitamin B12 deficiency be attributed to?

Correct Answer is C

Explanation

Older adults generally mount lower immune responses to vaccines. Which age-related change is likely to contribute to these lower immune responses?

Correct Answer is B

Explanation

How does hypoventilation affect the blood's pH?

Which clinical laboratory finding is expected with diabetes insipidus?

Which factor contributes to thrombus formation?

A patient with a history of weight loss and dysphagia arrives at a medical office for a follow-up after a recently performed EGD. The patient reports feeling a lump in the throat Which condition is described?

What is a common characteristic of diabetes insipidus?

Older adults generally mount lower immune responses to vaccines. Which age-related change is likely to contribute to these lower immune responses?

Which respiratory finding is expected in an attempt to compensate for metabolic acidosis?

A patient presents with fatigue, fever, and night sweats. An echocardiogram showed vegetation.

Which disease is described?