Which of the following would be a potential effect of exposure to Ricin regardless of entry method?

When discussing the potential effects of exposure to Ricin, respiratory issues are a significant concern regardless of the entry method. Ricin is a highly toxic protein derived from the castor bean, and its harmful effects typically manifest through the respiratory system, especially when inhaled. The inhalation of Ricin can lead to severe respiratory distress as it damages lung tissue, causing symptoms like coughing, difficulty breathing, and pulmonary edema.

While the other options like psychosis, blurred vision, and reduced immune function may be associated with various toxins or health conditions, they are not specifically or universally recognized as primary effects of Ricin exposure. Ricin primarily disrupts protein synthesis within cells, leading to cellular damage that predominantly affects organs such as the lungs when exposure occurs. Therefore, respiratory issues stand out as a direct and critical consequence of Ricin exposure, defining its impact on health.