Neurological Emergencies Flashcards
(42 cards)
Afferent
Sensory nerves
Efferent
Motor nerves
Cerebral blood supply
From vertebral arteries (20%) and internal carotids (80%)
Circle of Willis
Complete circle around brain and pituitary gland
Safeguard if blockage in 1 artery
2 Cerebral blood supply factoids
20% of body’s blood to brain
25% of body’s glucose to brain
Meninges
Dura mater
Arachnoid mater
Pia mater
Cerebellum
Balance, coordination and vision
Cerebrum
Language and memory, learning analysis
Cerebrum lobe
Frontal- personality
Parietal
Temporal- Speach
Occipital- Vision
RAS
Reticular activating system
Dorsal nerve root
Afferent
Ventral nerve root
Efferent
Broca
(expressive) Aphasia
speech is difficult to initiate, non-fluent, labored, and halting
Wernicke
(receptive) Aphasia
Speech is preserved, but language content is incorrect.
Paralysis
Loss of function, or voluntary movement, typically one side of the body or another
Paresthesia
Abnormal sensation felt in body, usually in extremities, often referred to as numbness or tingling
Hemiplegia
Paralysis of one lateral half of the body
Hemiparesis
Muscular weakness or partial paralysis to one side of the body
Aphasia
Unable to speak
Aphagia
Unable to swallow
AEIOUTIPS
A Alcohol, Anoxia E Epilepsy – Seizure disorder I Insulin (hypoglycemia/ hyperglycemia) O overdose U uremia (renal failure) T trauma (head injury and/or hypovolemia) I infection (CNS, septicemia, septic shock) P psych (psych meds can alter) S Stroke, CVA
ALOC differential diagnosis in the field
Medical
Trauma
Psychiatric
Structural coma
lesions CA, CVA, trauma
unilateral dysfunction, pupil changes
Metabolic states
Toxic states, drugs, diabetes, hypoxia
bilateral dysfunction, pupils may be equal