The Parasympathetic Nervous System utilizes which neurotransmitter?
Dopamine
Acetylcholine
Norepinephrine
Epinephrine
The Correct Answer is B
The Parasympathetic Nervous System utilizes the neurotransmitter acetylcholine. Acetylcholine is released by the postganglionic neurons of the parasympathetic nervous system and acts on target organs and tissues to elicit parasympathetic responses. It plays a crucial role in regulating various bodily functions, including digestion, heart rate, respiratory rate, and other rest and digestion activities.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
During an acute asthma attack, the airways become narrowed and inflamed, leading to symptoms such as wheezing, shortness of breath, and chest tightness. Short-acting beta2 agonists like Albuterol are the first-line medication for relieving acute asthma symptoms. They work by quickly relaxing the smooth muscles in the airways, resulting in bronchodilation and improved airflow. Albuterol provides rapid relief of symptoms and is often administered via inhalation.
A. Long-acting beta2 agonists (e.g., salmeterol) are typically used as maintenance therapy for long-term control of asthma symptoms, rather than for immediate relief during an acute attack.
C. Corticosteroids (e.g., fluticasone) are anti-inflammatory medications that are often prescribed for asthma, but they are more commonly used as part of a long-term management plan and may not provide immediate relief during an acute attack.
D. Anticholinergics (e.g., ipratropium) are sometimes used in combination with short-acting beta2 agonists for acute asthma exacerbations, but they are not typically the initial treatment choice for an acute asthma attack.
Correct Answer is C
Explanation
Prednisone is a corticosteroid medication commonly used to treat asthma and other inflammatory conditions. When taken for a prolonged period at higher doses, it can suppress the body's natural production of cortisol, a hormone produced by the adrenal glands. Abruptly stopping prednisone after long-term use can lead to adrenocortical insufficiency, also known as adrenal insufficiency or adrenal crisis.
Adrenocortical insufficiency occurs because the body's adrenal glands need time to resume normal cortisol production after being suppressed by prednisone. Gradually reducing the dose of prednisone allows the adrenal glands to gradually increase their cortisol production, minimizing the risk of adrenal insufficiency.
Rebound pulmonary congestion, hyperglycemia, and severe dehydration are not specific adverse effects associated with discontinuing prednisone. However, it is important for clients who have been taking prednisone to follow their healthcare provider's instructions regarding the tapering schedule and any potential risks or side effects.
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