Vitamin B12 (Cobalamin) Deficiency Causes
- Vegans
 - Pernicious Anemia
 - Gastric Bypass Surgery
 - Malabsorption
 - Sprue
 - Enteritis
 - Crohn's Disease
 - Diphyllobothrium latum
 
Folate Deficiency
- Macrocytic Anemia
 - Megaloblastic Anemia
 - Malabsorption
 - Dietary
 - Tea and Toast
 - Alcoholics
 - Medication-induced
 - Methotrexate
 - Trimethoprim
 - Increased Requirement
 - Hemolytic Anemia
 - Pregnancy
 
CN I
- Olfactory Nerve
 - Sensory
 - Smell
 
CN III
- Oculomotor Nerve
 - Motor
 - Eye Movement
 - Accommodation
 - Eyelid Opening
 - Pupillary Constriction
 
CN IV
- Trochlear Nerve
 - Motor
 - Abducts, Depresses, Internally Rotates
 
CN V
- Trigeminal Nerve
 - Sensory
 - Facial Sensation
 - Motor Function (Via Mandibular Nerve)
 - Mastication Muscles
 
CN VI
- Abducens Nerve
 - Motor
 - Abducts Eye
 
CN VII
- Facial Nerve
 - Lacrimation
 - Salivation
 - Sensory
 - Taste from Anterior 2/3 of Tongue
 - Motor
 - Facial Movement
 - Stapedius Muscle
 - Eyelid Closing
 
CN VIII
- Vestibulocochlear Nerve
 - Sensory
 - Hearing
 - Balance
 
CN IX
- Glossopharyngeal Nerve
 - Sensory
 - Taste from Posterior 1/3 of Tongue
 - Monitoring Carotid Body and Sinus
 - Motor
 - Stylopharyngeus
 - Swallowing
 - Salivation
 
CN X
- Vagus Nerve
 - Sensory
 - Aortic Arch Chemoreceptors and Baroreceptors
 - Taste from Epiglottic Region
 - Motor
 - Swallowing
 - Palate Elevation
 - Talking
 - Coughing
 - Midline Uvula
 
CN XI
- Accessory Nerve
 - Motor
 - Head Turning
 - Shoulder Shrugging
 
CN XII
- Hypoglossal Nerve
 - Motor
 - Tongue Movement
 
Cranial Nerve Function
- CN I
 - CN II
 - CN VIII
 - CN III
 - CN IV
 - CN VI
 - CN XI
 - CN XII
 - CN V
 - CN VII
 - CN IX
 - CN X
 
Posterior Column (Dorsal Column)
- Ascending Pathway (Sensory)
 - Proprioception
 - Fine Touch
 - Pressure
 - Vibration Sensation
 - Dorsal Root
 - Fasciculus Cuneatus
 - Arms
 - Fasciculus Gracilis
 - Lower Limbs
 - Vitamin B12 Deficiency
 - Tabes Dorsalis
 
Spinothalamic Tracts
- Ascending Pathway (Sensory)
 - Lateral
 - Temperature
 - Pain
 - Anterior
 - Crude Touch
 - Pressure
 - Decussates at Anterior White Commisure
 - Contralateral Anesthesia
 
Types of Strokes
- Transient Ischemic Attack (TIA)
 - Reversible Ischemic Neurologic Deficit (RIND)
 - Ischemic
 - Thrombotic
 - Atherosclerosis
 - Embolic
 - Atrial Fibrillation
 - Hemorrhagic
 - Severe Hypertension
 
Left Hemisphere Stroke Assessment
- Opposite Side Weakness (Hemiplegia)
 - Side to Side Discrimination
 - Aphasia
 - Agraphia
 - Slow Performance
 - Aware of Deficits
 - Anxiety
 - Depression
 
Right Hemisphere Stroke Assessment
- Opposite Side Weakness (Hemiplegia)
 - Poor Proprioception
 - Disoriented to Person, Place, Time
 - Can't Recognize Faces (Prosopagnosia)
 - Loss of Judgement and Awareness
 - Impulsiveness
 - Personality Changes
 - Tonal Hearing Loss
 
Anterior Cerebral Artery
- Contralateral paralysis of lower limb
 - Contralateral loss of sensation in lower limb
 
Middle Cerebral Artery
- Contralateral paralysis upper limb and face
 - Contralateral loss of sensation of upper limb and face
 - Affects Wernicke's area and Broca's area
 - Aphasia if Lesion in Dominant (Left) Hemisphere
 - Hemineglect if lesion in nondominant (right) hemisphere
 
Subarachnoid Hemorrhage
- Bleeding into Subarachnoid Space
 - Trauma
 - Aneurysm Rupture
 - AVM Rupture
 - Vasospasm causes Ischemia
 - "Worst Headache Of My Life"
 - Noncontrast Head CT
 - Lumbar Puncture
 - Angiography
 - Surgery
 - Blood Pressure Control
 - Intracranial Pressure Control
 - Nimodipine for Vasospasm Prophylaxis
 
Subdural Hematoma
- Tear of Bridging Veins
 - Slow Bleeding, Over Time
 - Subdural Space
 - Crescent-shaped on CT
 - Crosses Suture Lines
 - Midline Shift
 - Elderly
 - Whiplash
 - Abusive Head Trauma (Shaken Baby Syndrome)
 
Types of Seizures
- Tonic-Clonic
 - Tonic
 - Clonic
 - Absence (Petit Mal)
 - Myoclonic
 - Atonic
 - Partial (Focal) Seizure
 - Focal Aware (Formerly Called Simple Partial)
 - Focal Impaired Awareness (Formerly Called Complex Partial)
 
Barbiturates
- Barb- Drug Names
 - Facilitate GABA-A Action
 - Increased Duration of Chloride Channel Opening
 - Decrease Neuron Firing
 - Anesthesia Induction
 - Seizures and Neonatal Seizures
 - Essential Tremor
 - Sedation
 - Cardiovascular and Respiratory Depression
 - CNS Depression
 - Cytochrome P-450 Inducer
 - Contraindicated in Porphyria
 
Phenobarbital (Barbiturates)
- Barbiturate
 - Seizures
 - Ataxia
 - Paradoxical Excitement
 - Fatigue/Drowsiness
 - Monitor Plasma Levels
 - High Potential for Abuse
 
Benzodiazepines Overview
- First Line for Status Epilepticus
 - Anesthesia Induction
 - Anxiety
 - Eclampsia
 - Detoxification
 - '-zepam' and '-zolam' Suffix
 - Increase Frequency of Cl- Channel Opening
 - Decrease REM Sleep
 - CNS Depression
 - Dependence
 - Flumazenil for Overdose
 
Meniere's Disease
- Excess Endolymph
 - Tinnitus
 - One-sided Sensorineural Hearing Loss
 - Vertigo
 - Nausea and Vomiting
 - Meclizine (Antivert)
 - Low Salt Diet
 - Surgery
 
Indirect Cholinomimetics
- Acetylcholinesterase Inhibitors
 - Edrophonium
 - Myasthenia Gravis (Diagnosis)
 - Pyridostigmine and Neostigmine
 - Myasthenia Gravis (Tx)
 - Ileus
 - Physostigmine
 - Atropine Overdose
 - Glaucoma
 - Donepezil
 - Alzheimer's
 
Myasthenia Gravis
- Antibodies to Acetylcholine Receptor
 - Ptosis
 - Diplopia
 - Weakness with Muscle Use
 - Respiratory Death
 - Thymus Associated
 - Acetylcholinesterase Inhibitors
 - Plasmapheresis
 - Thymectomy
 
Prednisone (Glucocorticoids)
- Glucocorticoid
 - Inflammatory Conditions
 - Organ Transplant Rejection
 - Cataracts and Glaucoma
 - Cushing's Syndrome
 - Osteoporosis
 - Immunosuppression
 - Hyperglycemia
 - Ulcers
 - Adrenal Insufficiency
 - Taper Gradually
 
Multiple Sclerosis Features and Mechanisms
- More Common in Women
 - Presents in 20's and 30's
 - Northern Europeans
 - Unknown mechanism, genetic factor
 - HLA-DRB1
 - Autoimmune Demyelination of CNS
 - White Matter of Brain and Spinal Cord
 - T Cell Mediated Inflammation
 
Multiple Sclerosis Symptoms and Diagnosis
- Optic Neuritis
 - Internuclear Ophthalmoplegia
 - Scanning Speech
 - Urinary and Fecal Incontinence
 - Motor Issues (Intention Tremor, Paresis)
 - Numbness and Pain
 - Depression
 - Relapsing Symptoms
 - Gold Standard = Plaques on MRI
 - Increased CSF Immunoglobulins (IgG)
 - Oligoclonal Bands
 
Guillain-Barre Syndrome Assessment
- Ascending Paralysis
 - Muscle Weakness
 - Paresthesias (Pins and Needles)
 - Diplopia
 - Difficulty Speaking
 - Dysphagia
 - Labile Blood Pressure
 - Loss of Bowel and Bladder Control
 - Aggressive Airway Management
 
Amyotrophic Lateral Sclerosis (ALS)
- Progressive Muscle Weakness
 - Systemic Muscle Wasting
 - Fasciculations
 - Spasticity
 - Fatigue
 - Riluzole (Rilutek)
 - Stretching
 - Little to No Cognitive Decline
 - Respiratory Support
 - Palliative Care
 
5 A's of Alzheimer's Disease
- Agnosia
 - Anomia
 - Aphasia
 - Apraxia
 - Amnesia
 
Huntington's Disease
- Autosomal Dominant
 - Trinucleotide Repeat
 - CAG Repeats
 - Chromosome 4
 - Anticipation
 - Caudate
 - Decrease of ACh
 - Decrease of GABA
 - Chorea
 - Dementia
 - Depression
 - Glutamate Toxicity
 - Neuronal Death via NMDA Binding
 
Parkinson's Disease Assessment
- Decreased Dopamine
 - Older Adult
 - Cogwheel Rigidity
 - Bradykinesia
 - Shuffling Gait
 - Resting Tremor
 - Pill-Rolling
 - Mask-Like Face
 - Cognitive Decline
 
Parkinson's Disease Interventions
- Levodopa/Carbidopa (Sinemet)
 - Entacapone (Comtan)
 - Selegiline (Eldepryl)
 - Amantadine (Symmetrel)
 - Bromocriptine (Parlodel)
 - Benztropine (Cogentin)
 - Allow Extra Time
 - Ensure Patient Safety
 - Surgery As Last Resort
 
Parkinson's Drugs
- Decreased Dopamine
 - Increased Acetylcholine
 - BALSA Acronym
 - Bromocriptine
 - Amantadine
 - Levodopa
 - Selegiline
 - Antimuscarinics
 
Levodopa/Carbidopa (Sinemet)
- Parkinson's Disease
 - Increase Dopamine in Brain
 - Cross blood-brain barrier
 - Increase bioavailability
 - Arrhythmias
 - Dyskinesia
 
Craniopharyngioma
- Hypopituitarism
 - Remnants of Rathke's Pouch
 - Tooth-enamel Like Calcification
 - Cholesterol Crystals
 - Yellow Viscous Fluid
 - Headache
 - Bitemporal Hemianopsia
 
Ependymoma
- Occur in Children
 - Fourth Ventricle
 - Hydrocephalus
 - Perivascular Pseudorosettes
 - Rod Shaped Blepharoplasts
 - Cauda Equina in Adults
 - Poor Prognosis
 - Neurofibromatosis Type II
 
Glioblastoma Multiforme
- Most Common Malignant Primary Brain Tumor
 - Grade 4 Astrocytoma
 - Can Cross Corpus Callosum
 - Butterfly Glioma
 - Pseudo-palisading Tumor Cells
 - Areas of Necrosis and Hemorrhage
 - Stain Astrocytes for Glial Fibrillary Acidic Protein (GFAP)
 - Grave Prognosis
 
Medulloblastoma
- Occurs in Children
 - Cerebellum
 - Fourth Ventricle
 - Small Blue Cells
 - Lots of Mitotic Figures
 - Homer Wright Rosettes
 - Hydrocephalus
 - Ataxia
 - Wide-based Gait
 - Radiosensitive
 
Meningioma
- Most Common Adult Primary Brain Tumor
 - Benign
 - Originate from Arachnoid Villi
 - Dural Attachment
 - Parasagittal
 - Contralateral Leg Weakness
 - Seizures
 - Psammoma Bodies
 - Calcifications
 - Increased Bone Density
 
Pilocytic Astrocytoma
- Occurs Most Commonly in Kids
 - Posterior Fossa
 - Cerebellum
 - Well Circumscribed
 - GFAP
 - Rosenthal Fibers
 - Eosinophilic Corkscrew Fibers
 
Schwannoma
- Acoustic Schwannoma
 - Cranial Nerve VIII
 - Cerebellopontine Angle
 - S100 Positive
 - Bilateral Schwannoma in Neurofibromatosis Type 2
 - Tinnitus
 - Cranial Nerve V
 - Affects Corneal Reflex
 
Neurofibromatosis Type 1
- Autosomal Dominant
 - Chromosome 17
 - Neurofibromas
 - Optic Glioma
 - Lisch Nodules
 - Hamartomas
 - Cafe Au Lait Spots
 - Scoliosis
 - Pheochromocytoma
 
Neurofibromatosis Type 2
- Autosomal-Dominant
 - Chromosome 22
 - Vestibular Schwannoma
 - Meningioma
 - Ependymoma
 - Cafe Au Lait Spots
 - Cataracts
 
Tuberous Sclerosis
- Autosomal Dominant
 - Hamartomas in CNS and Skin
 - Phakoma
 - Subependymal Giant Cell Astrocytoma
 - Seizures
 - Intellectual Disability (Mental Retardation)
 - Facial Angiofibroma (Adenoma Sebaceum)
 - Shagreen Patch
 - Ash-Leaf Spots
 - Renal Angiomyolipoma
 - Cardiac Rhabdomyoma
 
Beriberi (Thiamine Deficiency)
- Thiamine Deficiency
 - Dry Beriberi
 - Polyneuritis
 - Muscle Wasting
 - Wet Beriberi
 - Dilated Cardiomyopathy
 - Edema
 
Wernicke-Korsakoff Syndrome
- Thiamine deficiency
 - Confusion
 - Ophthalmoplegia
 - Ataxia
 - Korsakoff
 - Confabulation
 - Personality Changes
 - Memory loss
 - Alcoholics
 - Damage to medial dorsal nucleus
 - Damage to mammillary bodies
 
Closed-Angle Glaucoma
- Lens causes pupillary obstruction
 - Aqueous humor builds behind iris
 - Iris bends forward, obstructing trabecular mesh
 - Hypoxia Causes Neovascular Proliferation
 - Contraction and obstruction of trabecular mesh
 - Asymptomatic
 - Eye pain and blindness
 - Rock-hard eye
 - Headache
 - Emergency
 - Epinephrine contraindicated
 
Age-Related Macular Degeneration (AMD)
- Dry (nonexudative)
 - Wet (exudative)
 - Scotomas
 - Blurred, Darkened Vision
 - Loss of Central Vision
 - Distortion of Vision
 - Drug Therapy
 - Surgery
 - Low-vision Assistive Devices
 
Cataract
- Age-related
 - No Pain
 - Cloudy Opaque Lens
 - Decreased Visual Acuity
 - Occurs Gradually
 - Surgery
 
Open-Angle Glaucoma
- Humor Has Access to Trabecular Meshwork
 - Painless
 - African American
 - Elderly
 - Positive Family History
 - Most Common Form of Glaucoma
 - Unknown Mechanism
 - Blocked Trabecular Meshwork (With Open-Angle)
 - WBCs
 - Red Blood Cells (RBC)
 - Retinal Products
 
Central Retinal Vein Occlusion
- Hypercoagulability
 - Hypertension
 - Diabetes Mellitus
 - Non-Ischemic
 - Mild to Moderate Vision Loss
 - Sparse Dot-blot and Flame Hemorrhages
 - Ischemic
 - Sudden, Painless Vision Loss
 - "Blood and Thunder" Appearance
 - Cotton Wool Spots
 - Papilledema
 - Observation if Non-Ischemic
 - Laser Photocoagulation
 - VEGF Inhibitors
 
Tremor Types
- Resting Tremor
 - Postural Tremor
 - Essential Tremor
 - Physiologic Tremor (Reversible)
 - Intention Tremor
 - Asterixis (Flapping Tremor)
 
Pick's Disease (Frontotemporal Dementia)
- Affects People Aged 45 to 65.
 - Frontal and Temporal Lobes
 - Occipital and Parietal Lobes are Spared
 - Tauopathy
 - Neuronal Apoptosis
 - Dementia
 - Personality Changes, Impaired Judgment, Apathy, and Disinhibition
 - Behavioral Variant
 - Primary Progressive Aphasia
 - Diagnosis Based on Clinical Features and Imaging
 - Supportive Care