A nurse is educating a client diagnosed with pulmonary embolism about the treatment options. Which of the following interventions is a common initial treatment approach for pulmonary embolism?

A) Correct. Computed tomography angiography (CTA) is often used as an initial screening tool for pulmonary embolism, as it provides detailed images of the pulmonary arteries.

B) Incorrect. Magnetic resonance imaging (MRI) may be used in some cases but is less commonly employed as an initial screening tool for pulmonary embolism.

C) Incorrect. Chest X-ray is typically not sensitive enough to diagnose pulmonary embolism directly but may show other related findings, such as an enlarged heart or lung abnormalities.

D) Incorrect. Electrocardiogram (ECG) may help identify signs of right heart strain or dysfunction caused by a pulmonary embolism but is not a primary diagnostic tool for detecting emboli in the pulmonary arteries.

A) Incorrect. Intravenous antibiotics are not typically used as the initial treatment for pulmonary embolism. Antibiotics are used to treat bacterial infections, not blood clots.

B) Correct. Anticoagulant therapy, such as heparin or low-molecular-weight heparin, is often the initial treatment for pulmonary embolism to prevent further clot formation and reduce the risk of complications.

C) Incorrect. Emergency surgical removal of the embolism is considered in severe cases but is not the common initial treatment approach.

D) Incorrect. Placement of a chest tube for drainage is not a standard treatment for pulmonary embolism; it is used for conditions involving pleural effusion or pneumothorax.