A nurse is teaching a client who has peripheral arterial disease. Which of the following statements should the nurse include in the teaching to explain peripheral arterial disease?
"Blood flow is altered and causes blood to pool in the legs."
"Blood flow is altered due to atherosclerosis affecting the tissues' ability to receive oxygen-rich blood."
"Blood flow is altered due to incompetent valves causing increased venous pressure."
"Blood flow is altered due to excessive stretching of the ventricles impairing the heart to contract."
The Correct Answer is B
A. "Blood flow is altered and causes blood to pool in the legs." This statement inaccurately describes venous insufficiency rather than peripheral arterial disease (PAD). In PAD, blood flow is reduced or obstructed due to atherosclerosis, leading to inadequate oxygen supply to tissues rather than pooling of blood in the legs.
B. "Blood flow is altered due to atherosclerosis affecting the tissues' ability to receive oxygen-rich blood." This statement correctly explains the underlying pathology of peripheral arterial disease (PAD). Atherosclerosis, characterized by the buildup of plaque in the arteries, narrows or blocks blood flow, impairing the delivery of oxygen-rich blood to the tissues. This can result in symptoms such as pain, cramping, and tissue damage, especially during activity when oxygen demand increases.
C. "Blood flow is altered due to incompetent valves causing increased venous pressure." This statement describes venous insufficiency rather than PAD. In venous insufficiency, faulty valves in the veins result in increased venous pressure, leading to symptoms such as swelling, heaviness, and varicose veins, but it does not involve arterial obstruction as seen in PAD.
D. "Blood flow is altered due to excessive stretching of the ventricles impairing the heart to contract." This statement describes a condition related to the heart's function rather than peripheral arterial disease. Excessive stretching of the ventricles may occur in conditions such as heart failure, but it does not directly affect blood flow in the peripheral arteries as seen in PAD.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. "Medications for Alzheimer's disease will help to increase my energy levels": This statement is not accurate. Medications for Alzheimer's disease, such as cholinesterase inhibitors (e.g., donepezil, rivastigmine) and memantine, are not intended to increase energy levels. Their primary goal is to improve cognitive function and help manage symptoms associated with Alzheimer's disease, but they do not directly affect energy levels.
B. "Medications for Alzheimer's disease will help slow the progression of my disease": This statement is correct. Medications used to treat Alzheimer's disease, such as cholinesterase inhibitors and memantine, are aimed at slowing the progression of cognitive decline and managing symptoms associated with the disease. While these medications cannot cure Alzheimer's disease, they can help improve cognitive function and quality of life for some individuals.
C. "Medications for Alzheimer's disease will help me remember what I forgot": This statement oversimplifies the effects of Alzheimer's medications. While these medications may help improve memory and cognition to some extent, they are not capable of restoring lost memories or reversing the effects of significant memory impairment caused by Alzheimer's disease.
D. "Medications for Alzheimer's disease will cure the disease": This statement is incorrect. Currently, there is no cure for Alzheimer's disease. Medications used to treat Alzheimer's, such as cholinesterase inhibitors and memantine, can help manage symptoms and slow disease progression, but they do not cure the underlying condition.
Correct Answer is D
Explanation
A) "Damage occurs from the penetrating object shattering the skull and causing an infection." While penetrating traumatic brain injuries can lead to skull fractures and subsequent infections, the primary mechanism of brain damage in these injuries is related to the direct impact of the penetrating object on brain tissue rather than the shattering of the skull.
B) "Damage to the brain is related to coup and contrecoup injuries." Coup and contrecoup injuries occur when the brain impacts the skull's interior surface due to rapid deceleration or acceleration, commonly seen in closed head injuries such as concussions. Penetrating traumatic brain injuries involve direct penetration of foreign objects into the brain tissue, and coup-contrecoup injuries are not typically associated with these types of injuries.
C) "Damage occurs from the penetrating injury causing leakage of cerebrospinal fluid." While penetrating injuries may result in cerebrospinal fluid leakage, this is not the primary mechanism through which they cause brain damage. Leakage of cerebrospinal fluid is more commonly associated with certain types of head trauma, such as skull fractures, rather than solely penetrating injuries.
D) "Damage to the brain is related to the size, route, and rate of speed of the object entering the brain." This statement is correct. The extent of brain damage in penetrating traumatic brain injuries depends on various factors, including the size, shape, and velocity of the penetrating object, as well as the route it takes through the brain tissue. Larger, faster-moving objects tend to cause more extensive damage, whereas smaller objects or those with slower velocities may cause more localized damage. Therefore, understanding these factors is crucial in assessing and managing patients with penetrating traumatic brain injuries.
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