Final answer:
To relieve an acute asthma attack, parents should be instructed to use Albuterol, a fast-acting bronchodilator that relaxes the muscles in the airways and is administered via an inhaler or nebulizer.
Step-by-step explanation:
A nurse instructing the parents of a school-aged child with asthma should advise them to use Albuterol to relieve an acute asthma attack. This medication is a short-term, fast-acting bronchodilator that can be administered through an inhaler or nebulizer. Albuterol works by relaxing the muscles in the airways, thereby opening them up and making it easier to breathe. It usually starts to take effect almost immediately after administration, to soothe constricted air passages during bronchospasm.