Mixed Deck — All CNS Topics Flashcards

What is the main function of the central nervous system?

Answer: Control voluntary and involuntary actions

The central nervous system (CNS), comprising the brain and spinal cord, acts as the primary control center for the entire body. It processes sensory information, initiates voluntary movements like walking and talking, and regulates essential involuntary functions such as breathing, heart rate, and digestion. Its comprehensive role makes it responsible for coordinating nearly all bodily activities and responses.

What is the function of the sympathetic nervous system?

Answer: Managing stress responses

The sympathetic nervous system is a division of the autonomic nervous system primarily responsible for the 'fight or flight' response. It prepares the body to react to perceived threats or stress by increasing heart rate, dilating pupils, diverting blood flow to muscles, and releasing adrenaline. This system is crucial for survival, enabling rapid physiological adjustments to dangerous situations.

In status epilepticus, the initial IM midazolam dose for an adult over 40 kg without IV access is:

Answer: 10 mg

Per the RAMPART trial, adults over 40 kg get 10 mg IM midazolam, which works as well as IV lorazepam.

In the context of Certified Neuro Specialist, what is the primary goal of pharmacology basics?

Answer: Optimal patient outcomes and safety

The primary goal of pharmacology basics in Certified Neuro Specialist is always to achieve optimal patient outcomes while maintaining safety standards.

Giving opioids to relieve dyspnea in end-stage ALS, knowing they may shorten life, is justified by which principle?

Answer: Double effect

Under double effect, a foreseen but unintended harm is allowed when the intent is to relieve suffering.

Which outcome measure is most appropriate for assessing functional independence across multiple activities of daily living in a neurological rehabilitation setting?

Answer: Functional Independence Measure (FIM)

The FIM assesses 18 items covering motor and cognitive domains of functional independence and is widely used in inpatient neurorehabilitation.

A clinician is offered speaking fees by a company that makes a new migraine drug they often prescribe. What is the most appropriate action?

Answer: Disclose the conflict of interest and keep prescribing based on evidence

Financial relationships must be disclosed, and they must not affect clinical decisions.

Which diagnostic test is commonly used to detect multiple sclerosis (MS)?

Answer: Magnetic Resonance Imaging (MRI)

Magnetic Resonance Imaging (MRI) is the most sensitive imaging technique for detecting the brain and spinal cord lesions characteristic of multiple sclerosis (MS). These lesions, caused by demyelination, appear as bright spots on MRI scans and are crucial for confirming an MS diagnosis and monitoring disease progression.

Why must nimodipine never be given IV?

Answer: IV administration has caused cardiac arrest and severe hypotension

FDA warnings note fatal outcomes when nimodipine capsule contents were injected IV, so it must be given orally or enterally.

What ethical principle should guide decision-making in the care of patients with neurological disorders?

Answer: Beneficence, acting in the patient's best interest

Beneficence is a core ethical principle in healthcare that obligates healthcare professionals to act in the best interest of their patients. In neurological care, this means making decisions and providing treatments that aim to promote the patient's well-being, improve their health, and alleviate suffering, while also considering potential risks.

Which part of the brain controls vital autonomic functions like heart rate and respiration?

Answer: The brainstem

The brainstem, located at the base of the brain and connecting to the spinal cord, is a vital control center for many basic life functions. It regulates critical autonomic processes that occur without conscious thought, such as heart rate, breathing, blood pressure, and sleep-wake cycles. Damage to the brainstem can therefore have severe, life-threatening consequences, highlighting its essential role in sustaining life.

A patient on phenytoin shows nystagmus, ataxia, and slurred speech. What is the priority?

Answer: Hold the dose, check a serum level, and use fall precautions

Nystagmus and ataxia are classic signs of phenytoin toxicity, which raises fall risk and requires holding the drug and checking levels.

Which ethical principle is most directly applicable to documentation standards?

Answer: Beneficence — acting in the patient's best interest

Beneficence, the principle of acting in the patient's best interest, is fundamental to ethical practice in documentation standards.

In a patient with acute spinal cord injury, neurogenic shock presents with hypotension and which cardiovascular finding that distinguishes it from hemorrhagic shock?

Answer: Bradycardia and warm, vasodilated extremities

Loss of sympathetic tone in neurogenic shock produces bradycardia and peripheral vasodilation, contrasting with the compensatory tachycardia seen in hemorrhagic shock.

Which evidence-based approach is most important when applying pharmacology basics principles?

Answer: Integrating current research with clinical expertise and patient values

Evidence-based practice in ${subj.toLowerCase()} requires integrating current research findings with clinical expertise and individual patient values.

In a patient with Guillain-Barré syndrome, which finding most strongly signals the need for ICU-level care?

Answer: Falling forced vital capacity below about 20 mL/kg

Respiratory muscle weakness with a falling FVC predicts the need for mechanical ventilation.

In the context of Certified Neuro Specialist, what is the primary goal of medical ethics and law?

Answer: Optimal patient outcomes and safety

The primary goal of medical ethics and law in Certified Neuro Specialist is always to achieve optimal patient outcomes while maintaining safety standards.

What is the best way to confirm a patient understood education about a new antiepileptic drug?

Answer: Teach-back, where the patient explains it in their own words

Teach-back checks real comprehension rather than assuming it.

How should a practitioner handle an unexpected finding during clinical assessment methods procedures?

Answer: Document it and follow established protocols for further evaluation

Unexpected findings must be documented and addressed through established protocols to ensure patient safety.

Which scale is the standard tool used in the US to communicate neurological status and guide management decisions in acute stroke patients across care teams?

Answer: NIH Stroke Scale (NIHSS)

The NIHSS is the standardized, validated tool used to quantify stroke severity across neurological domains and guides tPA eligibility and treatment decisions.