Which of the following is a potential side effect of using an inhaler?

Using an inhaler can lead to several side effects, and feeling 'jumpy' after inhaler use is specifically tied to the effects of certain types of inhalers, particularly those containing bronchodilators like albuterol. These medications work by stimulating the beta-adrenergic receptors in the airways, which helps to open the lungs. However, this stimulation can also affect other parts of the body, such as the heart and central nervous system, leading to sensations of increased alertness, restlessness, or anxiety, which are commonly described as feeling 'jumpy.'

The other options describe effects that are either positive outcomes of inhaler use or not typically associated with the side effects of inhalers. For example, congestion relief is an expected benefit from medications designed to treat respiratory conditions, rather than a side effect. Improved lung capacity is a goal of using inhalers, particularly in managing conditions like asthma or COPD, and is not a side effect. Although increased heart rate can occur due to bronchodilator medication, it is a more specific reaction rather than a generalized feeling of being 'jumpy.'

Therefore, the correct identification of feeling 'jumpy' as a side effect provides a clear understanding of the pharmacological impacts certain inhalers