Neurological Assessment Slides 1-20 Flashcards
Two regions of Nervous system
Central Nervous System (CNS)
Peripheral Nervous System (PNS)
CNS - Brain
Control center of body
Covered and protected by scalp, skull, and meninges
Blood brain barrier
Cerebrum - right and left hemispheres, frontal, parietal, occipital & temporal lobes
Diencephalon - (thalamus and hypothalamus) body temp, sleep
Cerebellum - position sense, posture & equilibrium/balance
Brain Stem - (medulla oblongata, pons & midbrain) resp. & cardiac regulation, sneezing
Lobes of the Cerebrum
Parietal – somatic sensory center
Frontal – higher intellect, speech production, personality, behavior, emotions, voluntary movement
Temporal – hearing, memory, speech perception and translation
Occipital – vision
CNS – Spinal Cord
- Extends from medulla to the level of the first lumbar vertebra
- Cord protected by vertebra, meninges and cerebral spinal fluid
- Gray matter is on the inside and white matter on the outside
- Mediates deep tendon reflexes
Spinal Roots
Cervical, thoracic, lumbar nerves
Posterior (sensory) roots
Anterior (motor) roots
Damage to posterior – loss of sensation
Damage to anterior – flaccid paralysis
Peripheral Nervous System (PNS)
The PNS links CNS with the rest of the body
External environmental information received and transmitted via PNS
- Cold, wet, hot, pain
Spinal Nerves
Cervical 8 pairs C1-C8
Thoracic 12 pairs T1-T12
Lumbar 5 pairs L1-L5
Sacral 5 pairs S1-S5
Coccygeal 1 pair Coccyx
Reflex
Rapid involuntary predictable motor response to a stimulus. Reflex arc, is not dependent on the brain.
Somatic
-Skeletal muscle contraction
Autonomic
-Cardiac, smooth muscle and glands
Three basic types of neurologic examination
Screening neurologic exam
Complete neurologic exam – neurologic concerns
Neurologic recheck exam
Assessment
Neurologic Exam
Assess mental status first
Equipment
Equipment
Eye charts, tuning fork, pen light, reflex hammer, key, buttons, coin, big safety pin
Mental Status
- Level of consciousness (LOC)/orientated, intact recent and remote memory
- Cognitive abilities and mentation
Level of consciousness (LOC)/orientated, intact recent and remote memory
Confusion/disorientation
Lethargy
Delirium
Coma
Glasgow Coma Scale – eye opening, verbal response, motor response
Cognitive abilities and mentation
Mini Mental State Examination
Mental Status Exam
The GlasgowComaScale (GCS) is a calculated scale that determines a patient’s level of consciousness. Medical professionals use it to evaluate patients with:
traumaticbrain injury
altered mental status
The scale measures three categories:
Eye opening (E)
Motor response (M)
Verbal response (V)
The GCS score is the sum of the score in each of the three categories, with a maximum score of 15 (normal) and a minimum score of 3 (deep unconsciousness), as follows:
GCS Score is equal to E + M + V
What Is a Normal GCS Score?
A normal GCS score is equal to 15, which indicates a person is fully conscious.
How Do You Interpret a GCS Score?
The GCS helps to define the severity of traumatic brain injury. In general:
Score 13-15: Mildhead injury
Score 9-12: Moderate head injury
Score of 8 or less: Severe head injury
Mental Status
Physical appearance, dress, grooming, hygiene
-Appropriate for age, sex, culture, season, setting
Behavior and affect, facial expression
-Depressed, hostile, euphoric, fearful, flat/dull
Assess thought content/process
Speech and Language
Quality
Rate
Volume
Fluency – Abnormal patterns
Aphonia/dysphonia – difficulty/discomfort in talking (laryngeal disease)
Cerebellar dysarthria – distorted speech sounds, may sound unintelligible, basic language intact
difficulty/discomfort in talking (laryngeal disease)
Aphonia/dysphonia
distorted speech sounds, may sound unintelligible, basic language intact
Cerebellar dysarthria
isa language disorder that makes it hard for you to read, write, and say what you mean to say. Sometimes it makes it hard to understand what other people are saying, too. Aphasia is not a disease. It’s a symptom of damage to the parts of the brain that control language.
Aphasia
3 kinds of Aphasia
Broca’s (expressive) – Understands, but cannot speak
Global – severe form, absent/reduced speech, absent/reduced understanding
Wernicke’s (receptive) – Ability to express self, but cannot understand others
Thought Processes and Perception
Perceptions
-Illusions/delusions
-Hallucinations
Ability to make a decision/judgment
Insight