Question

how is atelectasis typically diagnosed?
blood test
x - ray or ct scan
electrocardiogram (ecg)
urinalysis

Explanation:

Atelectasis is the collapse of lung tissue. Imaging techniques like X - ray or CT scan can visualize the lung structure and detect areas of collapsed lung tissue. Blood tests mainly check for substances in the blood (e.g., infections, anemia), ECG is for heart electrical activity, and urinalysis examines urine components. None of these directly visualize the lung structure like X - ray or CT scan for atelectasis diagnosis.

Answer:

X - ray or CT scan