A nurse is providing teaching to a group of clients about the changes that occur when clients experience cataracts. Which of the following statements should the nurse include in the teaching?

"Vision changes occur when pressure in the eye is increased due to a decrease of aqueous humor."

"Vision changes occur when blood vessels leak fluid or blood under a portion of the retina."

"Vision changes occur when the cloudy lens alters the passage of light through the eye."

"Vision changes occur when retinal tissue pulls away from the blood vessels in the eye."

Answer and Explanation

The Correct Answer is C

A) "Vision changes occur when pressure in the eye is increased due to a decrease of aqueous humor." This statement describes a mechanism associated with glaucoma, not cataracts. In cataracts, vision changes occur due to the opacity or cloudiness of the lens, not changes in intraocular pressure.

B) "Vision changes occur when blood vessels leak fluid or blood under a portion of the retina." This statement describes a mechanism associated with retinal diseases like diabetic retinopathy, not cataracts. In cataracts, the lens becomes cloudy, affecting the passage of light through the eye.

C) "Vision changes occur when the cloudy lens alters the passage of light through the eye." This statement is correct. Cataracts cause the lens of the eye to become cloudy, which interferes with the passage of light through the eye. This results in vision changes such as blurred vision, glare, and difficulty seeing in low light conditions.

D) "Vision changes occur when retinal tissue pulls away from the blood vessels in the eye." This statement describes a mechanism associated with retinal detachment, not cataracts. In cataracts, the lens becomes opaque, but the retinal tissue remains intact.

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Correct Answer is D

Explanation

A. "The heart and the coronary arteries weaken, leading to poor perfusion and resulting in angina": This statement is inaccurate. While angina can result from poor perfusion to the heart muscle, it is not typically due to weakening of the heart and coronary arteries. Angina often occurs due to coronary artery narrowing or blockage, leading to reduced blood flow and oxygen delivery to the myocardium.

B. "Coronary arteries become more elastic causing the arteries to stretch as individuals age causing the heart not to receive enough oxygen": This statement is incorrect. Coronary arteries do not become more elastic with age; in fact, they tend to become less elastic due to the development of atherosclerosis, which leads to arterial stiffening and decreased compliance. Atherosclerosis can cause narrowing or occlusion of the coronary arteries, resulting in reduced oxygen delivery to the heart muscle.

C. "Coronary arteries decrease in diameter leading to insufficient blood, oxygen, and nutrients reaching the heart muscle. Manifestations occur due to dilation of coronary arteries with increased blood flow causing increased pressure": This statement is partially incorrect. While it accurately describes the consequences of coronary artery narrowing (decrease in diameter) leading to insufficient blood, oxygen, and nutrient delivery to the heart muscle, the second part of the statement regarding dilation of coronary arteries with increased blood flow causing increased pressure is inaccurate. Coronary artery dilation is a compensatory response to increased demand for oxygen, aiming to improve blood flow to the myocardium. However, dilation alone does not increase pressure in the coronary arteries.

D. "Coronary arteries decrease in diameter leading to insufficient blood, oxygen, and nutrients reaching the heart muscle": This statement is accurate. Coronary artery disease (CAD) involves the progressive narrowing of the coronary arteries due to atherosclerosis, which reduces blood flow to the myocardium. As the arteries narrow, there is insufficient blood, oxygen, and nutrients reaching the heart muscle, leading to manifestations such as angina, myocardial ischemia, and potentially myocardial infarction.

A. Colchicine B. Acetaminophen C. Indomethacin D. Amiodarone E. Nitroglycerine

Correct Answer is ["A","C"]

Explanation

A. Colchicine:

Colchicine is commonly used in the treatment of pericarditis, especially in cases of recurrent or refractory pericarditis.

It helps reduce inflammation and alleviate symptoms by inhibiting the migration of neutrophils to the inflamed pericardium.

Colchicine is often used in conjunction with nonsteroidal anti-inflammatory drugs (NSAIDs) or corticosteroids for the management of pericarditis.

B. Acetaminophen:

Acetaminophen is a pain reliever and fever reducer commonly used to manage mild to moderate pain associated with various conditions, including pericarditis.

While acetaminophen may provide symptomatic relief, it is not typically considered a primary treatment for pericarditis, especially in cases of severe or recurrent pericarditis.

C. Indomethacin:

Indomethacin is a nonsteroidal anti-inflammatory drug (NSAID) that can help reduce inflammation and relieve pain associated with pericarditis.

NSAIDs are often used as first-line therapy for acute pericarditis to alleviate symptoms such as chest pain and fever.

However, caution should be exercised when using NSAIDs in certain populations, such as older adults or those with preexisting gastrointestinal or renal conditions.

D. Amiodarone:

Amiodarone is an antiarrhythmic medication used to treat various types of arrhythmias, including ventricular arrhythmias and atrial fibrillation.

While pericarditis may lead to certain arrhythmias, such as atrial fibrillation, amiodarone is not a first-line treatment for pericarditis itself.

However, it may be used in cases where pericarditis is complicated by arrhythmias or concomitant cardiac conditions.

E. Nitroglycerine:

Nitroglycerine is a vasodilator medication commonly used to treat angina and heart failure.

While pericarditis may cause chest pain similar to angina, nitroglycerine is not typically used as a primary treatment for pericarditis.

In fact, nitroglycerine may exacerbate symptoms of pericarditis by causing venodilation and increasing cardiac preload.

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A nurse is providing teaching to a group of clients about the changes that occur when clients experience cataracts. Which of the following statements should the nurse include in the teaching?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

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Correct Answer is D

Explanation

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Correct Answer is ["A","C"]

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