Gas exchange

A child is brought to the emergency department and is diagnosed with status asthmaticus. The child's respiratory rate is 40 breaths/min, and there are decreased breath sounds bilaterally throughout the lung fields. The nurse administers an aerosol bronchodilator and reassesses the lung sounds. Which finding is the best indicator that the bronchodilator has been effective? Breath sounds are louder bilaterally. The child is coughing up sputum. The respiratory rate is 36 breaths/min. There is no audible wheezing.

Breath sounds are louder bilaterally. Louder breath sounds mean that more air is moving throughout the lung fields.

Which diagnostic test is most accurate in assessing acute airway obstruction? Arterial blood gases (ABGs) Pulmonary function studies Pulse oximetry Spirometry

Pulmonary function studies Pulmonary function studies are used to help confirm the diagnosis of COPD, determine disease severity, and monitor disease progression.

A child is admitted to the emergency department with an acute asthma attack. Which early assessment finding does the nurse expect? decreased respiratory rate expiratory wheezing inspiratory stridor cyanosis

expiratory wheezing Expiratory wheezing is common during an acute asthma attack and results from narrowing of the airway caused by edema

A client is receiving furosemide as part of the treatment for heart failure. Which assessment finding indicates that the medication is attaining a therapeutic effect? blood pressure 140/80 mm Hg PaO2 80 mm Hg crackles auscultated halfway up lungs, previously in bases trace peripheral edema, previously +2

trace peripheral edema, previously +2 he client's peripheral edema should decrease, indicated by changing from +2 to trace