The Parasympathetic Nervous System utilizes which neurotransmitter?

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.

Expectorants are medications that help thin and loosen mucus in the respiratory tract, making it easier to cough up and clear from the airways. Increasing fluid intake, particularly water helps to keep the mucus thin and less sticky, facilitating its removal. Adequate hydration can help promote effective expectoration and relieve congestion.

The other options are incorrect because:

B. Taking the medication once a day only, usually at bedtime: The dosing frequency and timing of expectorants can vary depending on the specific medication prescribed. It is important to follow the healthcare provider's instructions regarding the dosing schedule.

C. Increase fiber and fluid intake to prevent constipation: This instruction is unrelated to expectorant use. Increasing fiber and fluid intake is commonly recommended to promote regular bowel movements and prevent constipation, but it is not directly related to expectorant therapy.

D. Restrict fluids to decrease mucus production: Restricting fluids can lead to dehydration and thickening of mucus secretions. It is important to stay adequately hydrated to maintain thin and easily expectorated mucus. Restricting fluids is not recommended for managing mucus production.