An infant who weighs 22 pounds receives a prescription for amoxicillin 20 mg/kg/day by mouth in divided doses every 8 hours. The bottle is labeled, "Amoxicillin for Oral Suspension, USP 250 mg per 5 mL." How many mL should the nurse administer with each dose? (Enter numerical value only. If rounding is necessary, round to the nearest tenth.)

Shortness of breath on exertion in a client with a history of chronic obstructive pulmonary disease (COPD) and pneumonia indicates increased respiratory distress and compromised lung function. It suggests that the client is experiencing difficulty breathing even with minimal physical exertion. This finding may indicate worsening respiratory status, increased oxygen demand, and inadequate oxygenation. The nurse should take immediate action to address the shortness of breath, which may involve providing supplemental oxygen, initiating or adjusting bronchodilator medications, and monitoring the client's respiratory status closely. Prompt intervention is crucial to ensure adequate oxygenation and prevent respiratory failure.

While the other assessment findings (bilateral diffuse wheezing, temperature of 100.5 °F, and yellow expectorated sputum) are also important and require attention, the shortness of breath on exertion poses the greatest immediate risk and necessitates immediate intervention to address the client's respiratory distress.

A) Incorrect- Dullness bilaterally on percussion is not a normal finding, but it is not an immediate concern after thoracentesis. It may indicate fluid accumulation or consolidation in both lungs, which could be related to other conditions such as pneumonia or heart failure.
B) Incorrect- Serosanguinous drainage from the chest tube is expected after thoracentesis, as long as it is not excessive or continuous. The nurse should monitor the amount and color of the drainage and document it accordingly.
C) Incorrect- Diminished breath sounds in the left lower lobe are also expected after thoracentesis, as the procedure removes fluid and air from the pleural space and reduces lung expansion. The nurse should auscultate the lungs before and after the procedure and compare the findings. The breath sounds should improve gradually as the lung re-expands.
D) Correct- This is a sign of tension pneumothorax, which is a life-threatening complication of thoracentesis. Tension pneumothorax occurs when air accumulates in the pleural space and creates positive pressure that pushes the mediastinum (the heart, great vessels, and trachea) to the opposite side of the chest. This can impair venous return, cardiac output, and respiratory function. The nurse should report this finding to the healthcare provider immediately and prepare to assist with needle decompression or chest tube insertion.