After checking vital signs for a client with a C5 spinal cord injury experiencing autonomic dysreflexia, what should the nurse do next?

In dealing with autonomic dysreflexia, particularly in a client with a C5 spinal cord injury, the immediate goal is to reduce the dangerously high blood pressure that can result from this condition. Placing the client in a high-Fowler's position is an appropriate and effective first step in addressing this issue. This position assists in reducing blood pressure by promoting venous return and helping to alleviate pressure in the thoracic cavity, which can also aid in symptom relief.

Moreover, positioning the client in high-Fowler's helps to promote airway safety and make the client more comfortable while assessing further underlying causes of the dysreflexia. It is crucial to first ensure safety and comfort before addressing medication needs or other interventions, which may follow this initial response.

Other options, while they might be part of the overall care in managing autonomic dysreflexia, are not the immediate next step after checking vital signs. Administering antihypertensive medication could be necessary, but it typically comes after the immediate physical interventions like positioning the client. Initiating an IV fluid bolus or applying a cooling blanket may not directly address the acute issue of elevated blood pressure in this scenario.