What type of blood pressure reading is common if a patient is experiencing shock?

Low blood pressure

Explanation:

Shock is a medical condition caused when the cells and tissues of the body do not receive enough oxygen.

There are many factors which can cause a shock like the blood vessels gets dilated, the blood volume lowers and the blood pressure decrease.

When the blood volume lowers than enough blood is not supplied to the organs and cells as a result of which the cell ad organs die. Same conditions could happen when the blood pressure drops.

Thus, low blood pressure is correct.