A nurse is caring for a client with suspected pulmonary embolism who is undergoing diagnostic testing. What diagnostic test is often used as an initial screening tool for pulmonary embolism?

A) Incorrect. Jaundice is a yellowing of the skin and sclera due to elevated bilirubin levels, which is not described in the client's symptoms.

B) Incorrect. Pallor refers to paleness of the skin, which is not consistent with the client's cyanosis.

C) Incorrect. Erythema refers to redness of the skin due to increased blood flow, which is not the best description of the client's symptoms.

D) Correct. Cyanosis is the bluish discoloration of the skin, lips, and nail beds due to decreased oxygen saturation in the blood, which is indicative of a severe oxygen deficit often seen in pulmonary embolism.

A) Incorrect. While pain management is important, providing supplemental oxygen to address severe shortness of breath takes priority.

B) Incorrect. Initiating anticoagulant therapy is essential but may take some time to have an effect. Oxygen therapy should be provided immediately to address the client's oxygenation.

C) Correct. Providing supplemental oxygen is the priority intervention for a client with severe

shortness of breath to ensure adequate oxygenation.

D) Incorrect. Encouraging ambulation is not appropriate in a client with severe shortness of breath. Stabilizing the client's oxygenation and condition is the immediate concern.