Final answer:
The nurse should assess the client's respiratory status and report the findings to the healthcare provider for further evaluation.
Step-by-step explanation:
Neostigmine is a medication commonly used in the treatment of myasthenia gravis, a chronic neuromuscular disorder that causes muscle weakness and fatigue.
It works by inhibiting the breakdown of acetylcholine, a neurotransmitter that plays a crucial role in muscle contraction.
However, bilateral crackles in the lower lung lobes may indicate a potential respiratory complication, such as pneumonia.
Therefore, the nurse should prioritize assessing the client's respiratory status further and reporting the findings to the healthcare provider for further evaluation.
This may include obtaining a chest X-ray, collecting a sputum sample, and monitoring vital signs.