The Nurse Is Assessing the Blood Pressure of a Client

The nurse is assessing the blood pressure of a client. The nurse obtains the blood pressure in both of the client's arms. The nurse determines that there is a difference of 15 mmHg in the systolic readings between the arms and repeats the assessment with the same results. Based on this data, which does the nurse suspect?

A) Inaccurate technique.
B) Anxiety.
C) Unilateral arterial obstruction.
D) Shock.