The distribution and flow of blood through lung vasculature is assessed by using a procedure called a ventilation-perfusion scan.Decreased distribution of blood through the lungs is highly suggestive of a respiratory disorder known as _________,supported by the results of a(n)_______ procedure performed on the patient's legs,and then will require treatment referred to as ________ to remove the blood clots.
A)Systemic venous thrombosis, ultrasound, streptokinase
B)Pulmonary embolism, ultrasound, tissue plasminogen activator
C)Chronic obstructive pulmonary disorder, ultrasound, tissue plasminogen activator
D)Pulmonary embolism, CT scan, coumadin
E)Systemic venous thrombosis, MRI, heparin

Question

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A ventilation-perfusion scan is used to assess the distribution and flow of blood through lung vasculature. Decreased distribution of blood through the lungs is highly suggestive of a pulmonary embolism. To confirm the presence of blood clots, an ultrasound is typically performed on the patient's legs. Treatment for a pulmonary embolism involves the use of tissue plasminogen activator. Therefore, the best choice is B: Pulmonary embolism, ultrasound, tissue plasminogen activator.

The Distribution and Flow of Blood Through Lung Vasculature Is