Age related changes
Progressive loss of brain volume associated with normal aging most notably involving shrinkage of cerebral tissue due to neuronal and structural decline is referred to by what neurologic term?
What is brain atrophy?
Using scalp electrodes to detect, amplify, and graph cerebral electrical patterns for the evaluation of seizure disorders, encephalopathies, sleep abnormalities, and other neurologic conditions, what diagnostic test measures the brain’s electrical activity?
What is an EEG (electroencephalogram)?
A 24-year-old client with a history of epilepsy suddenly begins generalized tonic-clonic seizure activity while sitting in a chair at the nurse’s station. Which action should the nurse take first?
What is assist the client to the floor and protect the head?
As age-related physiologic changes reduce peripheral nerve efficiency through factors such as myelin degeneration and neuronal loss, which specific neurologic process decreases, resulting in slower transmission of electrical impulses throughout the peripheral nervous system?
What is nerve conduction time or velocity?
By recording the electrical activity produced by skeletal muscles at rest and during contraction—often through needle electrode insertion—this diagnostic study helps evaluate peripheral nerve dysfunction, muscle pathology, and disorders of neuromuscular transmission.
What is an EMG (electromyography)?
Defined by a chronic predisposition to recurrent, unprovoked seizure activity due to abnormal electrical discharges in the brain, which neurologic disorder is diagnosed when a patient experiences repeated seizures not caused by an immediate reversible trigger?
What is epilepsy?
As part of normal age-related neurologic decline, the gradual reduction of these excitable cells contributes to slower signal transmission, diminished processing speed, and decreased overall nervous system efficiency.
What are neurons?
Performed by advancing a needle typically between the lumbar vertebrae into the subarachnoid space to obtain cerebrospinal fluid for diagnostic evaluation of infection, hemorrhage, neurologic disorders, or pressure abnormalities, what invasive neurologic procedure is being described?
What is a lumbar puncture or spinal tap?
Characterized by immediate involvement of bilateral cerebral networks at onset rather than originating in a single focal area, this seizure classification begins simultaneously in both hemispheres and may present with widespread motor, sensory, tonic-clonic, absence, or loss-of-consciousness manifestations.
What is a generalized seizure?
In normal aging, which structural neuroanatomical change is characterized by a decline in myelinated fiber pathways that impairs communication speed between brain regions and contributes to slower cognitive processing?
What is reduced cerebral white matter volume?
This diagnostic neurovascular procedure involves the injection of radiopaque contrast medium to produce detailed visualization of cerebral circulation, allowing clinicians to identify aneurysms, stenosis, arteriovenous malformations, or vessel occlusions within the brain.
What is a cerebral angiogram?
Formerly classified as a complex partial seizure, this seizure subtype originates in one cerebral hemisphere and is characterized by altered consciousness, impaired awareness, and automatisms such as lip-smacking, picking behaviors, or repetitive purposeless movements.
What is a complex focal seizure?
With normal aging, microscopic neuroanatomical changes can reduce cognitive processing speed even in the absence of neurodegenerative disease. Which age-related change most directly contributes to slower neural communication by decreasing inter-neuronal connectivity and reducing the efficiency of signal transmission?
What is Synaptic loss and decreased dendritic branching between neurons?
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An older adult with hypertension, hyperlipidemia, and 40 year smoking history reports transient right arm weakness and brief episodes of left-eye vision loss lasting several minutes. The provider orders a BLANK. (Diagnostic test)
What is a carotid ultrasound? Or carotid duplex ultrasound?
This noninvasive test uses sound waves to assess blood flow through arteries supplying the brain.
A client with temporal lobe epilepsy suddenly stops mid-conversation, stares blankly, begins lip smacking, and repeatedly picks at their clothing for approximately 45 seconds. Afterward, the client appears confused and asks, “What happened?” Which nursing interpretation and action are most appropriate?
What is a focal impaired awareness seizure; protect the client from injury and calmly reorient after the episode?