A nurse is educating a client about the sympathetic nervous system. Which of the following statements is correct?
The sympathetic nervous system is responsible for "fight or flight."
The sympathetic nervous system helps us to rest and digest.
The sympathetic nervous system Includes the cranial nerves.
The sympathetic nervous system can lower blood pressure.
The Correct Answer is A
A) The sympathetic nervous system is responsible for "fight or flight":
This is the correct answer. The sympathetic nervous system is responsible for the "fight or flight" response, which prepares the body to react to perceived threats or stressors by increasing heart rate, dilating pupils, redistributing blood flow, and releasing stress hormones such as adrenaline and noradrenaline.
B) The sympathetic nervous system helps us to rest and digest:
This statement is incorrect. The parasympathetic nervous system is responsible for the "rest and digest" response, which promotes relaxation, digestion, and conservation of energy.
C) The sympathetic nervous system includes the cranial nerves:
This statement is incorrect. The sympathetic nervous system is primarily associated with the thoracolumbar region of the spinal cord and does not include the cranial nerves, which are primarily associated with the parasympathetic nervous system.
D) The sympathetic nervous system can lower blood pressure:
This statement is incorrect. The sympathetic nervous system typically increases blood pressure as part of the "fight or flight" response by increasing heart rate and constricting blood vessels to redirect blood flow to vital organs and muscles.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A) Orthostatic hypotension is indicated by a decrease in diastolic blood pressure of 5 mm Hg:
Orthostatic hypotension is typically defined by a decrease in systolic blood pressure of 20 mm Hg or more or a decrease in diastolic blood pressure of 10 mm Hg or more within three minutes of standing up. Diastolic blood pressure alone is not the primary indicator of orthostatic hypotension.
B) Orthostatic hypotension is indicated by a decrease in systolic blood pressure of 5 mm Hg:
While a decrease in systolic blood pressure is a component of orthostatic hypotension, the criterion for diagnosing orthostatic hypotension is a decrease in systolic blood pressure of 20 mm Hg or more or a decrease in diastolic blood pressure of 10 mm Hg or more within three minutes of standing up.
C) Orthostatic hypotension increases a client's risk of a fall:
This statement is correct. Orthostatic hypotension, characterized by a sudden drop in blood pressure upon standing, can lead to dizziness and lightheadedness, increasing the risk of falls, particularly in older adults.
D) Orthostatic hypotension increases a client's risk of a pulmonary emboli:
Orthostatic hypotension is not directly associated with an increased risk of pulmonary emboli. Pulmonary embolism is a separate condition involving a blockage in the pulmonary artery or its branches, typically caused by a blood clot."
Correct Answer is ["A","E"]
Explanation
A) Obstructive sleep apnea (OSA):
Obstructive sleep apnea is a known risk factor for the development of hypertension. During episodes of sleep apnea, breathing repeatedly stops and starts, leading to disruptions in normal sleep patterns and potentially contributing to increased sympathetic nervous system activity, systemic inflammation, and endothelial dysfunction, all of which can elevate blood pressure over time.
B) The choice B was incorrect. While a diet high in potassium is generally associated with lower blood pressure due to its beneficial effects on blood vessel function and fluid balance, it is not considered a risk factor for developing hypertension. In fact, potassium-rich foods like fruits, vegetables, and legumes are often recommended as part of a heart-healthy diet to help manage blood pressure.
C) The choice C was incorrect. A high-density lipoprotein (HDL) level of 70 mg/dL is actually considered beneficial for cardiovascular health. HDL is often referred to as "good" cholesterol because it helps remove LDL (low-density lipoprotein) cholesterol from the bloodstream, reducing the risk of plaque buildup in the arteries. Having a high HDL level is typically associated with a lower risk of cardiovascular disease, including hypertension.
D) The choice D was incorrect. Benazepril is actually an antihypertensive medication, specifically an angiotensin-converting enzyme (ACE) inhibitor. It is used to treat hypertension, not as a risk factor for its development. ACE inhibitors work by relaxing blood vessels, which helps lower blood pressure. While taking certain medications like benazepril may contribute to the management of hypertension, they are not considered risk factors for its development.
E) Cigarette smoking:
Cigarette smoking is a well-established risk factor for the development of hypertension. Smoking cigarettes can lead to the constriction of blood vessels, increased heart rate, and damage to the lining of blood vessels, all of which can elevate blood pressure. Additionally, the chemicals in tobacco smoke can contribute to inflammation and oxidative stress, further exacerbating cardiovascular risk factors. Smoking cessation is an essential component of hypertension management and overall cardiovascular health.
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