A nurse is reviewing a client's laboratory report of arterial blood gas (ABG) findings: pH 7.28, HCO3 18, and PaCO2 36. Which of the following conditions should the nurse anticipate when interpreting these findings?

Choice A reason: A distended bladder is a common cause of autonomic dysreflexia. It can trigger an exaggerated response from the autonomic nervous system, leading to a rapid increase in blood pressure. This is because the full bladder sends signals to the spinal cord, which then attempts to send signals to the brain. However, due to the injury, these signals cannot pass through, resulting in a reflex that increases blood pressure.

Choice B reason: While a severe headache is a symptom of autonomic dysreflexia, it is not a cause. The headache results from the body's response to a triggering stimulus, such as a distended bladder, which leads to the high blood pressure characteristic of autonomic dysreflexia.

Choice C reason: Nasal congestion is not typically a cause of autonomic dysreflexia. The condition is usually triggered by a noxious stimulus below the level of the spinal cord injury, such as a full bladder or bowel, skin irritation, or other types of physical discomfort.

Choice D reason: Elevated blood pressure is a symptom, not a cause, of autonomic dysreflexia. The condition itself causes a sudden spike in blood pressure due to an uncontrolled reflex sympathetic discharge in response to a triggering stimulus below the level of the injury.

Choice A reason: Instructing the client to perform range-of-motion exercises to his lower extremities immediately after cardiac catheterization is not recommended. The client should maintain bed rest with the affected leg straight to prevent bleeding from the catheter insertion site.

Choice B reason: Ambulating the client 1 hour following the procedure is not advised. After femoral artery access, the client is typically required to remain on bed rest with the affected leg straight for several hours to ensure hemostasis and prevent bleeding².

Choice C reason: Restricting the client's fluid intake is not a standard post-procedure action. Adequate hydration is important after cardiac catheterization to help flush the contrast dye used during the procedure from the body, unless contraindicated.

Choice D reason: Assessing the color, temperature, and pulse in the affected extremity is crucial for detecting signs of bleeding, hematoma formation, or arterial occlusion. These assessments should be performed regularly as part of post-cardiac catheterization care².