Which of the following would indicate the effectiveness of a bronchodilator?
Retractions on assessment
Chest tightness
Use of accessory muscles
SpO2 increased from 87% to 94%.
The Correct Answer is D
A. Retractions on assessment: Retractions suggest increased respiratory effort and are a sign of respiratory distress. Their presence indicates that the airway is still obstructed or the patient is struggling to breathe, suggesting the bronchodilator has not been effective.
B. Chest tightness: Chest tightness is a subjective symptom often associated with bronchospasm or airway constriction. If it persists after bronchodilator use, it signals continued respiratory compromise and inadequate relief from the medication.
C. Use of accessory muscles: Use of accessory muscles indicates labored breathing and ongoing difficulty with ventilation. Effective bronchodilation should reduce the work of breathing and minimize reliance on these muscles.
D. SpO₂ increased from 87% to 94%: An increase in oxygen saturation indicates improved gas exchange and oxygenation, reflecting that the bronchodilator has successfully opened the airways. This is a measurable and objective sign of medication effectiveness.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Change the chest tube drainage system:Changing the entire drainage system is not warranted for intermittent bubbling in the water seal chamber. This action is appropriate for malfunctioning systems or when there is a significant system compromise such as contamination or leakage.
B. Document the findings:Intermittent bubbling in the water seal chamber is an expected finding during active pneumothorax as air escapes from the pleural space. This indicates that the chest tube is functioning, and documenting the observation is the appropriate action.
C. Check for an air leak:Continuous, not intermittent, bubbling may indicate an air leak. Intermittent bubbling usually occurs during expiration or coughing and does not require investigation unless it becomes continuous or excessive.
D. Notify the health care provider:There is no immediate need to notify the provider for expected intermittent bubbling. This is a normal finding in some phases of pneumothorax resolution and does not indicate a complication requiring urgent intervention.
Correct Answer is A
Explanation
A. Antihistamine:Antihistamines are the first-line treatment for allergic reactions such as itchy, watery eyes, sneezing, and coughing caused by allergens like grass pollen. They block histamine, the chemical responsible for allergic symptoms, providing effective relief in seasonal allergies.
B. Antitussive:Antitussives suppress coughing and are used for dry, nonproductive coughs. They do not address the underlying allergic reaction or associated symptoms like sneezing and itchy eyes, making them inappropriate for this case.
C. Decongestant:Decongestants relieve nasal congestion by constricting blood vessels in the nasal mucosa. While they may help with stuffiness, they do not treat the histamine-mediated symptoms such as watery eyes or sneezing effectively.
D. Expectorant:Expectorants thin mucus to help with productive coughs. They are not helpful in treating allergic reactions and will not relieve the patient's symptoms caused by grass allergy exposure.
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