Which of the following is a sign of shock?

Diplopia, or double vision, is primarily a neurological symptom often associated with ocular or neurological conditions. While it can occur in various medical situations, it is not a typical sign of shock, which is characterized by circulatory issues rather than direct visual disturbances.

Dysphagia refers to difficulty swallowing and is commonly linked to disorders of the esophagus or nervous system. It does not relate to the physiological changes occurring during shock, where the focus is on systemic circulatory failure rather than swallowing difficulties.

Hypertension, or high blood pressure, is not a sign of shock. In fact, shock typically presents with hypotension (low blood pressure) due to inadequate blood volume or cardiac output. Thus, hypertension contradicts the physiological state of shock.

Paresthesia, characterized by sensations of tingling or numbness, often results from nerve issues or peripheral vascular problems. While it may occur in various medical conditions, it is not a direct indicator of shock, which is more closely associated with changes in skin color and blood pressure.