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 A

Explanation

A. Radiofrequency catheter ablation involves the use of electrical energy (radiofrequency energy) delivered through a catheter to destroy or ablate the areas of the heart tissue responsible for the abnormal electrical signals causing atrial flutter. This destruction of tissue helps to interrupt the abnormal electrical pathways and restore normal rhythm.
B. The procedure for atrial flutter ablation does not use cold therapy. Instead, it uses radiofrequency energy (heat) to ablate the tissue. Cold therapy, or cryoablation, is a different technique that uses extreme cold to achieve similar effects but is not the standard approach for radiofrequency catheter ablation.
C. Radiofrequency catheter ablation does not involve removing clots. The primary purpose of the procedure is to ablate abnormal tissue causing arrhythmias, not to address clots. Managing clots may involve anticoagulant therapy or other treatments, but it is not the focus of ablation.
D. Radiofrequency catheter ablation does not stimulate the growth of new conduction pathways. Instead, it aims to destroy the abnormal conduction pathways responsible for arrhythmias.

A. Cool, clammy skin B. Chest pain radiating into the back and jaw C. Nausea and vomiting D. Peripheral edema

Correct Answer is D

Explanation

A. Cool, clammy skin can be a sign of a myocardial infarction. It occurs due to the body's stress response during an MI, leading to decreased perfusion and sweating. This symptom is consistent with the autonomic response to a heart attack.
B. Chest pain radiating into the back, jaw, or arms is a classic symptom of myocardial infarction. This radiation of pain is due to the way pain signals are transmitted and referred from the heart to other parts of the body. It is a common and significant symptom of MI.

C. Nausea and vomiting can occur during a myocardial infarction, particularly in older adults. These symptoms are related to the autonomic nervous system's response to the stress of an MI and can sometimes be the presenting symptoms, especially in women and older adults.
D. Peripheral edema is generally not a direct symptom of myocardial infarction. It is more commonly associated with chronic heart failure or other conditions leading to fluid overload. While MI can lead to heart failure over time, peripheral edema itself is not a typical acute symptom of an MI.

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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

Which information will the nurse include when teaching a patient who is scheduled for a radiofrequency catheter ablation for treatment of atrial flutter?

Correct Answer is A

Explanation

A nurse is providing education to a group of older adults about the signs and symptoms of a myocardial infarction. Which of the following is not a sign of a myocardial infarction?

Correct Answer is D

Explanation

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