A nurse is teaching a client about the risk factors for pulmonary embolism. Which statement made by the client indicates a correct understanding of the risk factors?

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) Correct. Smoking cessation is an important lifestyle modification to reduce the risk of recurrent pulmonary embolism. Smoking is a risk factor for blood clot formation.

B) Incorrect. Limiting physical activity is not recommended, as moderate physical activity can be beneficial. However, strenuous activity may need to be adjusted depending on the individual's condition and treatment.

C) Incorrect. A high-sodium diet is not recommended, as excessive sodium intake can contribute to hypertension, which is a risk factor for blood clots.

D) Incorrect. Avoiding vaccinations is not relevant to the prevention of pulmonary embolism. Vaccinations are essential for preventing certain infections.