A nurse is caring for a client immediately following a procedure that required spinal anesthesia. Which of the following findings indicates the client is experiencing a complication of the anesthesia?

Choice A rationale Hiccups can occur postoperatively due to irritation of the phrenic nerve or diaphragm, sometimes related to abdominal distention or certain anesthetic agents. While annoying for the client, hiccups are generally benign and are not considered a classic or significant complication specifically resulting from the administration of spinal anesthesia. They do not indicate a failure of the anesthetic technique or a dangerous physiological shift in the same way that a post-dural puncture headache or respiratory depression would. Choice B rationale Numbness in the legs is an expected and intended effect of spinal anesthesia, not a complication. The purpose of the anesthesia is to block nerve conduction in the lower half of the body to allow for a painless surgical procedure. This effect typically lasts for several hours depending on the specific anesthetic agent used. The nurse should monitor for the return of sensation and motor function, but the presence of numbness immediately following the procedure is a normal finding. Choice C rationale A headache, specifically a post-dural puncture headache, is a well-known complication of spinal anesthesia. It occurs if cerebrospinal fluid (CSF) leaks through the puncture site in the dura mater, leading to decreased CSF pressure around the brain. This typically results in a severe, throbbing headache that worsens when the client sits up and improves when lying flat. Management may include hydration, caffeine, or an autologous blood patch to seal the leak if the headache persists. Choice D rationale An absence of the urge to void is an expected side effect of spinal anesthesia because the autonomic nervous system fibers that control bladder sensation and contraction are blocked. This can lead to urinary retention, which is why nurses monitor bladder volume and may need to catheterize the client. While it is a side effect that requires nursing intervention, it is a common and anticipated result of the block rather than an unexpected or pathological complication like a CSF leak.