The charge nurse is teaching a group of telemetry nurses about cardioversion. Which statement by the telemetry nurse would indicate that they understand the instruction about the electrical discharge?

It occurs immediately when buttons depressed.

It requires a higher amount of joules than is used in defibrillation.

It discharges during ventricular depolarization of the heart.

It is programmed to occur in non-sync mode.

Answer and Explanation

The Correct Answer is C

A. It occurs immediately when buttons depressed: The device synchronizes with the R wave and does not deliver the shock immediately.

B. It requires a higher amount of joules than is used in defibrillation: Cardioversion typically requires fewer joules compared to defibrillation.

C. It discharges during ventricular depolarization of the heart: Synchronized cardioversion times the electrical shock with the R wave (ventricular depolarization) to avoid delivering energy during the T wave, which could induce ventricular fibrillation.

D. It is programmed to occur in non-sync mode: Cardioversion must be synchronized; non-sync mode is used in defibrillation.

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Correct Answer is D

Explanation

A. Elevated serum calcium levels: This is not typical for Paget's disease. While hypercalcemia can occur in advanced stages, the primary issue in Paget's disease is abnormal bone remodeling.

B. Elongated trunk: This is not characteristic of Paget's disease. Paget's disease affects bone remodeling and can lead to deformities such as bowing of the legs or enlarged bones, but not an elongated trunk.

C. Warm, swollen areas over femur: This can occur in Paget's disease due to increased blood flow to the affected bones, but it is not the most distinctive feature.

D. Mosaic pattern of bone: This pattern, which appears on X-ray, is a hallmark of Paget’s disease, indicating disorganized bone remodeling and a disruption of normal bone architecture.

A. Congenital valve abnormalities B. Rheumatic fever C. Autoimmune deficiency syndrome D. Degenerative calcification of valve

Correct Answer is B

Explanation

A. Congenital valve abnormalities: Although congenital heart defects can cause aortic stenosis, rheumatic fever is a more common cause in adults.

B. Rheumatic fever: Rheumatic fever is the most common cause of aortic stenosis in adults, as it can lead to scarring and narrowing of the aortic valve.

C. Autoimmune deficiency syndrome: This is not associated with aortic stenosis.

D. Degenerative calcification of valve: This is a common cause of aortic stenosis in older adults, but it is generally less common than rheumatic fever as the primary cause in a younger or middle-aged population.

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The charge nurse is teaching a group of telemetry nurses about cardioversion. Which statement by the telemetry nurse would indicate that they understand the instruction about the electrical discharge?

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Naxlex Comprehensive Predictor Exams

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Correct Answer is D

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Correct Answer is B

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