Neuro Assessment
During a neurological assessment, this finding is considered the earliest and most sensitive indicator of a change in neurological status.
Level of consciousness
Rationale: Level of consciousness (LOC) is the most sensitive indicator of neurological function. Changes in alertness, orientation, and responsiveness may indicate early neurological deterioration.
Before this diagnostic test is performed, the nurse should assess for allergies and other risks associated with contrast administration.
CT (Computed Tomed Tomography) scan
Rationale: Many CT scans use contrast media to enhance visualization of neurological structures. Nurses should assess for a history of contrast allergies, kidney impairment, and previous reactions to contrast agents to reduce the risk of adverse events.
This assessment finding is most commonly associated with irritation of the meninges.
Nuchal rigidity
Rationale: Nuchal rigidity, or neck stiffness, is a classic finding associated with meningitis. Other manifestations include fever, headache, photophobia, and altered mental status.
This cranial nerve is responsible for the sense of smell and is tested by having the patient identify odors with each nostril separately.
Olfactory Nerve (CN I)
Rationale: The olfactory nerve is a sensory nerve responsible for smell. Testing each nostril individually helps identify unilateral deficits that may occur with head trauma, neurological disorders, or tumors. Loss of smell (anosmia) can affect nutrition and safety, such as the ability to detect smoke or gas leaks.
This inherited neurodegenerative disorder is characterized by progressive choreiform movements, cognitive decline, and psychiatric changes, and follows an autosomal dominant pattern of inheritance.
Huntington disease
Rationale: This disorder can lead to involuntary jerking or writhing movements (chorea), impaired cognition, and behavioral or psychiatric symptoms. Nursing priorities include ensuring patient safety due to impaired motor control, assessing nutritional status because swallowing difficulties and increased caloric needs may occur, promoting communication strategies, supporting cognitive function, and providing emotional support and genetic counseling resources for the client and family. As the disease progresses, clients often require increasing assistance with activities of daily living and mobility
During a neurological assessment, the nurse asks a client to push both feet against resistance and lift both arms against resistance. This assessment primarily evaluates this function.
Motor strength
Rationale: Resistance testing evaluates muscle strength and motor function. Strength is graded from 0 to 5, with 5 representing normal power.
Prior to this diagnostic procedure, the nurse must screen the client for implanted metal devices, clips, or pacemakers.
MRI (Magnetic Resonance Imaging)
Rationale: MRI uses a powerful magnetic field that can attract or interfere with metal objects and implanted devices. Identifying contraindications before the procedure is essential to prevent serious injury and ensure patient safety.
This neurological disorder is characterized by inflammation of the brain tissue and commonly presents with fever, headache, altered mental status, and seizures.
Encephalitis
Rationale: Encephalitis is inflammation of the brain parenchyma, most often caused by a viral infection. Clients may exhibit fever, confusion, behavioral changes, decreased level of consciousness, focal neurological deficits, or seizures. Nursing priorities include frequent neurological assessments, seizure precautions, airway monitoring, management of increased intracranial pressure, and administration of prescribed antiviral medications and supportive care. Early recognition of worsening neurological status is essential to prevent complications and improve outcomes.
A patient is unable to move the eyes laterally during an assessment. This cranial nerve may be impaired.
Abducens Nerve (CN VI)
Rationale: The abducens nerve controls lateral eye movement. Dysfunction may result in diplopia (double vision) and an inability to abduct the affected eye. Assessing extraocular movements helps nurses identify neurological impairment, increased intracranial pressure, or cranial nerve damage.
The statement "I should plan rest periods and avoid overheating" indicates understanding of home management for which type of neuropathic disorder?
Multiple Sclerosis
Rationale: Heat and fatigue can temporarily worsen MS symptoms. Scheduled rest, cooling strategies, and activity within tolerance help preserve function.
This neurological assessment measures a person's level of consciousness and responsiveness after a brain injury or medical event.
Glasgow Coma Scale
Rationale: The GCS measures eye, verbal, and motor responses and ranges from 3 to 15.
This neurological diagnostic test records the electrical activity of the brain, and clients may need to follow medication or sleep-deprivation instructions before the procedure.
EEG (Electroencephalogram)
Rationale: An EEG measures brain wave activity and is commonly used to evaluate seizure disorders, altered consciousness, and other neurological conditions. Following prescribed medication and sleep instructions improves the accuracy of the test results.
A client's cerebrospinal fluid analysis reveals elevated neutrophils, increased protein levels, and decreased glucose concentrations. These findings are most consistent with this diagnosis.
Bacterial meningitis
Rationale: Bacterial meningitis typically produces neutrophilic pleocytosis, elevated CSF protein, and reduced CSF glucose. Viral meningitis generally has normal glucose and a predominantly lymphocytic response.
When assessing this cranial nerve, the nurse asks the patient to shrug the shoulders against resistance.
Accessory Nerve (CN XI)
Rationale: The accessory nerve controls the sternocleidomastoid and trapezius muscles, which are responsible for head movement and shoulder elevation. Weakness may suggest nerve injury, spinal cord damage, or neuromuscular disorders. Comparing strength bilaterally is an important component of the neurological exam.
Autoimmune destruction of acetylcholine receptors at the neuromuscular junction is the underlying mechanism of this disorder.
Myasthenia Gravis
Rationale: Commonly from antibodies against postsynaptic acetylcholine receptors. Repeated activity produces fatigable muscle weakness.
During a neurological assessment, the nurse notices a new right-sided arm drift and weakness compared with the previous assessment. This is the most appropriate nursing action.
Initiate an immediate stroke evaluation and notify the appropriate emergency response team
Rationale: New unilateral weakness or pronator drift may indicate an acute focal neurological deficit, including stroke. Immediate escalation is necessary to prevent delays in diagnosis and treatment.
A client undergoing this procedure should be monitored for headache, changes in neurological status, and signs of complications at the insertion site. The nurse must also consider the risk of herniation if increased intracranial pressure is suspected.
Lumbar Puncture (Spinal Tap)
Rationale: A lumbar puncture involves the removal of cerebrospinal fluid (CSF) for analysis. Increased ICP or a mass lesion can increase the risk of brain herniation following CSF removal. Post-procedure monitoring helps detect complications such as CSF leakage, infection, or neurological deterioration.
A client with suspected bacterial meningitis has blood cultures obtained and prescriptions for IV antibiotics and dexamethasone. Which action is most appropriate?
Administer dexamethasone before or with the first antibiotic dose as prescribed and begin antibiotics promptly
Rationale: Early antimicrobial treatment is essential. When indicated, dexamethasone should be administered before or with the first antibiotic dose to reduce inflammatory complications. Treatment should not be delayed for culture results.
During assessment, the nurse asks the patient to smile, puff out the cheeks, and raise the eyebrows to evaluate this cranial nerve.
Facial Nerve (CN VII)
Rationale: The facial nerve controls facial muscle movements and taste sensation on the anterior two-thirds of the tongue. Asymmetry or weakness may indicate Bell's palsy, stroke, or other neurological conditions. Early recognition is important for prompt intervention.
In clients experiencing progressive ascending weakness, monitoring respiratory effort and vital capacity should be the nurse's highest priority when dealing with this disorder.
Guillain-Barré syndrome
GBS can progress to respiratory muscle paralysis. Serial respiratory assessment, including vital capacity when ordered, helps identify impending respiratory failure before oxygen saturation falls.
A client develops a new neurological deficit and is able to lift the left leg against gravity but not against resistance. The nurse would document this muscle strength grade.
3/5
Rationale: Grade 3/5 indicates movement against gravity but not against added resistance. Grade 2/5 indicates movement only with gravity eliminated; 5/5 is normal strength.
After this vascular diagnostic procedure, the nurse should closely assess the puncture site, distal circulation, and neurological status.
Cerebral Angiography
Rationale: Cerebral angiography involves injecting contrast into cerebral blood vessels. Post-procedure nursing priorities include monitoring for bleeding, hematoma formation, impaired circulation distal to the insertion site, and changes in neurological status that may indicate complications such as stroke or vessel occlusion.
A client with fever, headache, confusion, and new seizures is suspected of having herpes simplex encephalitis. Which prescribed treatment should the nurse anticipate as a priority?
IV acyclovir
Rationale: HSV encephalitis is a neurological emergency. Prompt IV acyclovir inhibits viral replication and reduces mortality and neurological injury. Renal function and hydration require monitoring during therapy.
A patient has difficulty swallowing, an absent gag reflex, and impaired movement of the soft palate.
Glossopharyngeal (CN IX) and Vagus (CN X) nerves
Rationale: CN IX and CN X work together to facilitate swallowing and protect the airway. Deficits increase the risk for aspiration, making assessment of the gag reflex, swallowing ability, and speech quality a nursing priority. Signs such as choking, coughing, or hoarseness warrant further evaluation.
A nurse caring for a client with a brain tumor notes worsening early-morning headaches, vomiting, and a declining level of consciousness. These findings suggest this complication.
Increased intracranial pressure
Rationale: An expanding intracranial mass and associated edema can elevate ICP. Progressive headache, vomiting, and declining consciousness warrant immediate neurological evaluation.