A nurse is providing discharge teaching to the parent of a child who is prescribed diphenhydramine 25 mg elixir every 4 hr as needed. The amount available is diphenhydramine elixir 12.5 mg/5 mL. How many mL should the nurse administer per dose?
(Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

Robitussin A-C contains codeine, which is an opioid antitussive that can have sedating effects. One of the major disadvantages of using this medication is the potential for drowsiness as a side effect. This can impair the client's ability to perform tasks that require alertness and can interfere with daily activities.
The other options listed are not the major disadvantage of antitussive therapy with Robitussin A-C:
The medication is irritating to the bronchial tree: Robitussin A-C is primarily used as an antitussive (cough suppressant) rather than for its effects on the bronchial tree. While it may have some mild irritant properties due to certain ingredients, it is not considered a major disadvantage of this medication.
The client may use the medication for 14 days: The duration of use for Robitussin A-C is typically determined by the healthcare provider based on the client's condition. While prolonged use of antitussives is generally not recommended without medical supervision, the duration of use is not considered the major disadvantage of this medication.
The medication is very expensive: The cost of medication can vary, and while cost may be a consideration for some individuals, it is not considered the major disadvantage of Robitussin
A-C specifically. The major disadvantage relates more to the potential for drowsiness caused by the medication.

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.