A nurse is caring for a client who reports insomnia. The nurse should monitor the client for which of the following adverse effects of sleep deprivation? (Select all that apply.)

Choice A rationale Sleep deprivation significantly disrupts the regulation of neurotransmitters in the brain, particularly serotonin and dopamine. These chemicals are essential for maintaining emotional stability and a balanced mood. When a person lacks sufficient restorative sleep, the amygdala becomes hyper-reactive to negative stimuli, leading to heightened emotional responses. This neurological irritability often manifests as sudden mood swings, irritability, or increased emotional sensitivity during daily interactions and tasks. Choice B rationale While tension headaches are commonly associated with high levels of stress or poor posture, they are not typically classified as a primary direct physiological adverse effect of sleep deprivation itself. Although a lack of sleep can lower a person's pain threshold or increase general discomfort, the clinical literature specifically focuses on cognitive and psychological impairments. Therefore, tension headaches are considered an indirect or secondary symptom rather than a primary diagnostic indicator of sleep loss. Choice C rationale Chronic insomnia and prolonged sleep deprivation are heavily linked to the development or exacerbation of depression. Lack of sleep impairs the prefrontal cortex, which is responsible for executive function and emotional regulation. This impairment can lead to persistent feelings of hopelessness, loss of interest in activities, and a general decline in mental health. Long-term disruption of the circadian rhythm often precedes clinical depressive episodes in many vulnerable patients in clinical settings. Choice D rationale Hyperreflexia refers to overactive or overresponsive bodily reflexes, which is usually indicative of an upper motor neuron lesion or specific electrolyte imbalances rather than simple sleep deprivation. Sleep loss tends to result in delayed reaction times and diminished motor coordination rather than an exaggerated reflex response. The physiological strain of insomnia typically suppresses the nervous system's efficiency, leading to lethargy and slowed physical movements rather than the spasticity seen in hyperreflexia. Choice E rationale Altered taste, or dysgeusia, is not a recognized physiological consequence of inadequate sleep. Taste perception is governed by the gustatory cells in the taste buds and the cranial nerves that transmit these signals to the brain. While sleep deprivation can influence appetite and cravings for high-calorie foods due to changes in ghrelin and leptin levels, it does not physically change the sensory mechanism of taste or the ability to distinguish between different flavor profiles.