The National Center for Health Statistics made revisions to the ICD-9-CM in:

Pulmonary angiography is performed when computed tomography (CT) scans are inconclusive for diagnosis of

A. pulmonary infusion C. pulmonary embolism B. obstructive pulmonary disease D. spontaneous pneumothorax

Which of the following is NOT considered a cardiovascular factor influencing blood pressure?

a. Blood volume b. Peripheral resistance c. Vessel elasticity d. Heart muscle condition e. Clotting capabilities