A nurse is caring for a client who has a spinal cord injury and suspects the client is developing autonomic dysreflexia. Which of the following actions should the nurse take first?

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: Fever and chills Fever and chills are not typically associated with the abrupt cessation of TPN. These symptoms are more commonly related to infections or inflammatory processes in the body. While infections can be a complication of TPN due to the invasive nature of the therapy, they are not a direct result of the discontinuation of the infusion. Total Parenteral Nutrition (TPN) is a method of feeding that bypasses the gastrointestinal tract. Fluids are given into a vein to provide most of the nutrients the body needs. The sudden stop in the infusion of TPN can lead to a rapid drop in blood sugar levels, known as hypoglycemia, because the body has become accustomed to the continuous influx of glucose from the TPN solution.

Choice B: Hypertension and crackles Hypertension (high blood pressure) and crackles (sounds heard on lung auscultation indicative of fluid in the air spaces) are not expected clinical manifestations due to the stopping of TPN. These symptoms are more commonly associated with cardiovascular and pulmonary conditions, respectively.

Choice C: Excessive thirst and urination Excessive thirst and urination could be symptoms of hyperglycemia (high blood sugar), which might occur if TPN is infused too quickly or if the patient has an increased insulin requirement. However, these are not the immediate concerns when TPN is abruptly stopped.

Choice D: Shakiness and diaphoresis Shakiness and diaphoresis (sweating) are common signs of hypoglycemia, which can occur if TPN is stopped suddenly. The body may have been receiving a steady supply of glucose from the TPN, and a sudden halt can cause blood sugar levels to drop quickly. This can lead to symptoms such as weakness, shakiness, sweating, and even confusion or loss of consciousness if not addressed promptly. When TPN is abruptly discontinued, the nurse should monitor the client for signs of hypoglycemia, including shakiness and diaphoresis. It is important to restart the TPN infusion as soon as possible or provide an alternative source of glucose to prevent hypoglycemia and its potential complications.