A nurse is assessing a client who has chronic kidney disease and notes that the client has small crystals on his forehead. The nurse understands that this manifestation is a result of an excess of which substance in the body?

Potassium

Sodium

Urea

Creatinine

Answer and Explanation

The Correct Answer is C

A.   Elevated potassium levels (hyperkalemia) can occur in chronic kidney disease, as the kidneys struggle to excrete potassium. However, hyperkalemia does not typically cause visible crystals on the skin. It is more associated with cardiac arrhythmias and muscle weakness rather than skin manifestations.
B.   Sodium imbalance is common in chronic kidney disease, often leading to fluid retention and hypertension. However, excess sodium does not result in crystal formation on the skin. Sodium issues are more related to fluid balance and blood pressure, not external crystalline deposits.
C.   Urea is a waste product formed from the breakdown of proteins and is normally excreted by the kidneys. In chronic kidney disease, urea accumulates in the blood (uremia) because the kidneys cannot effectively filter it out. Urea can be deposited on the skin and form crystals, leading to a condition known as "uremic frost." This is often observed on the forehead or other areas of the skin and is a direct result of excess urea in the body.

D.   Creatinine is another waste product filtered by the kidneys. Elevated levels indicate impaired kidney function, but creatinine itself does not form visible crystals on the skin. Elevated creatinine levels are primarily used as an indicator of kidney function rather than a cause of external skin manifestations.

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Correct Answer is B

Explanation

A. A pneumothorax, or collapsed lung, occurs when air enters the pleural space, leading to lung collapse. While a pneumothorax can be a serious issue, it is not a typical finding associated with advanced COPD.
B. Hyperinflation is a hallmark finding of advanced COPD. It occurs when air becomes trapped in the lungs due to obstructed airways and damaged alveoli, leading to increased lung volumes and overexpansion of the lungs. On a chest X-ray, hyperinflation appears as an increased retrosternal air space, flattened diaphragm, and possibly increased lung volumes.
C. The presence of masses on a chest X-ray might suggest malignancies or other lung pathologies, but it is not a typical finding in COPD. While lung cancer can co-occur with COPD, masses themselves are not a direct indicator of COPD but rather a potential separate issue that would need further evaluation.
D. Atelectasis refers to the collapse of lung tissue due to loss of air in the alveoli, which can occur from various causes including obstruction or compression of the lung. While atelectasis can be seen in various pulmonary conditions, it is not specific to advanced COPD.

A. The client is of Asian descent. B. The client's water source comes from a well. C. The client worked in agriculture. D. The client is military veteran.

Correct Answer is D

Explanation

A. Ethnicity alone is not a known risk factor for ALS. ALS has a relatively uniform incidence across different ethnic groups. Studies have not demonstrated a significant correlation between ALS and being of Asian descent specifically.

B. There is limited evidence suggesting that consuming well water could be associated with an increased risk of ALS, particularly if the well water is contaminated with certain toxins or heavy metals. However, this is not a widely established risk factor and is less directly linked to ALS compared to other known risk factors.
C. Working in agriculture has been identified as a potential risk factor for ALS. Agricultural workers are often exposed to various environmental toxins, pesticides, and herbicides, which have been associated with an increased risk of developing ALS. This occupational exposure is considered a significant risk factor for the disease.
D. Military veterans are known to have an increased risk of developing ALS. Several studies have shown that veterans, particularly those who served in combat or were exposed to specific environmental hazards during their service, have a higher incidence of ALS compared to the general population.

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A nurse is assessing a client who has chronic kidney disease and notes that the client has small crystals on his forehead. The nurse understands that this manifestation is a result of an excess of which substance in the body?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

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Correct Answer is B

Explanation

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Correct Answer is D

Explanation

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