Final answer:
The correct statement showing understanding is keeping a chart of daily peak flow meter results, as it helps in monitoring the child's asthma and provides vital information for managing their condition.
Step-by-step explanation:
The statement made by a family member that indicates an understanding of the nurse's instructions on the use of inhalers prescribed for asthma is "We will keep a chart of daily peak flow meter results." Using a peak flow meter is a recommended practice for managing asthma as it helps in monitoring the child's ability to expel air from the lungs. This monitoring tool is vital in assessing the effectiveness of asthma control and determining when the symptoms are getting worse.
Keeping a chart of the peak flow meter results allows for a visual representation of the asthma's progression over time and enables early intervention should the readings begin to decline, indicating a potential worsening of the condition. In contrast, relying on the child's self-report of symptoms or disregarding the monitoring of vital signs such as pulse rate could result in missing early signs of asthma exacerbation.
Skin colour changes, like blue lips or face, are indeed signs of severe asthma attacks requiring immediate medical attention. However, the statement about skin colour changes being an early warning sign for airway constriction was not provided as an option and thus not the correct answer.