Chapter 19, 20, and 32 Flashcards
What is the reticular activating system?
series of neurologic circuits in the brain that control the functions of staying awake, paying attention and sleeping. oxygen, water, and glucose control normal consciousness
What is altered mental status?
usually the most common causes hypoxia. can lead to combativeness
What is the pancreas?
midline of upper abdomen producing insulin
What is glucose?
a form of sugar, the body’s basic source of energy
What is insulin?
a hormone produced by the pancreas or taken as a medication by many diabetics
What is diabetes mellitus?
also called “sugar diabetes” or just “diabeteres,” the condition brought about by decreased insulin production or the inability of the body cells to use insulin properly. the person with this condition is a diabetic
What is type 1 diabetes?
insulin- dependent diabetes when pancreatic cells fial to function properly and insulin is not secreted normally not having enough insulin in system to transfer circulating glucose into cells
What is type 2 diabetes?
non-insulin dependent diabetes when body cells fail to use insulin properly pancreas may be secreting enough but body is unable to use or move glucose out of blood and into cells.
What is hypoglycemia?
low blood sugar. rapid onset occurs when take too much insulin, reduces sugar intake by not eating, over exercising exerting and using up sugar faster than normal, vomits a meal, increases metabolic rate by sickness lead to sympathetic response: pale, sweaty skin, tachycardia, and rapid breathing can lead to unconsciousness, seizures, and permanent brain damage less than 60 mg/dL, 50 mg/dL unresponsive. regular to rapid/shallow respirations; skin pale, cool and clammy; AMS, combative, lethargic; weak, rapid pulse; normal to low BP; behavior may mimic stroke or intoxication; seizure, fainting or coma; blood glucose levels
What is hyperglycemia?
high blood sugar, decrease in insulin leaving sugar in bloodstream instead of cells occurs over months or weeks chronic thirst and hunger, warm red skin, breathe deep and rapid, abdominal pain, vomiting and increased urination with nausea causing dehydration and diabetic ketoacidosis. 140 mg/dL greater than 300 mg/dL dehydration and other medical symptoms. so give glucose. skin warm, pink and dry; AMS more progressive, drowsiness and lethargy; severe dehydration causing thirst and dark urine “polydipsia and urea; visual or sensory deficits; muscle weakness or pain, seizures; as blood glucose levels increase kussmaul respirations may develop; blood glucose levels > 300 mg/dL. need fluids before insulin, glucometer history must be able to speak and swallow can give oral glucose not going to be more detrimental to a hyperglycemia but will save life of hypoglycemia.
What is diabetic ketoacidosis?
a condition that occurs as the result of high blood sugar (hyperglycemia), characterized by dehydration, altered mental status, and shock fruity acetone odor on breath.
What are the diabetic medicines?
humulin, glucotrol, glucophage, and micronase
What are oral glucose?
patient has history of diabetes, altered mental status, away enough to swallow ingest whole tube or based on size. can give via intranasal via atomizer
What is altered mental status?
can be caused by hypoxia, sepsis, drug and alcohol use, brain injuries traumatic and medical, metabolic abnormalities, brain tumor, and infectious diseases meningitis.
What is sepsis?
infection usually UTI pneumonia and skin/wound infections, especially a severe, system wide response to infection causing systemic inflammation causing drop in pressure in cardiovascular system, hypovolemic shock leading to hypoperfusion of body tissues. microbes then release toxins harming cardiac output furthering shock state.
What is seizure?
sudden change in sensation, behavior, or movement. the most severe form of seizure produces violent muscle contractions called convulsions
What is partial seizure?
a seizure that affects only one part or one side of the brain may or may not lose consciousness. tingling, stiffening, or jerking in just one part of body; may be aura such as smell, bright lights, burst of colors, rising sensation in stomach may spread and develop into tonic-clonic seizure. complex partial seizure (psychomotor or temporal lobe- abnormal behavior varies from person to person involve confusion, glassy stare, aimless moving about, lip smacking or chewing, or fidgeting with clothing appearing drunk or on drugs not violent but may struggle or fight if restrained rarely screaming, running, disrobing, or showing great fear.
What is a generalized seizure?
a seizure that affects both sides of the brain and affects consciousness. absence seizure- brief usually less than 10 second no dramatic motor activity and person doesn’t slump or fall with temporary loss of concentration or awareness and may go unnoticed to everyone except person and knowledgeable members of family can have several hundred throughout the day
What is a tonic-clonic seizure?
a generalized seizure in which the patient loses consciousness and ahs jerking movements of paired muscle groups. tonic- body becomes rigid, stiffening for no more than 30 seconds breathing may stop and patient may bite his tongue (rare), and bowel and bladder control may be lost. clonic- body jerks about violently, no more than 1-2 minutes (can last 5) with patient possibly foaming at mouth and drool face and lips often becoming cyanotic
What is postical phase?
the period of time immediately following a tonic-clonic seizure in which the patient goes from full loss of consciousness to full mental status. when convulsions stop patient may regain consciousness immediately entering state of drowsiness and confusion may remain unconscious for several hours with headache. vary in length, and may become combative
What is an aura?
a sensation experienced by a seizure patient right before the seizure, which might be a smell, sound or general feeling
What is a seizure?
caused by pediatric (fever), hypoxia, stroke, traumatic brain injury, toxins, hypoglycemia, brain tumor, congenital brain defects, infection, metabolic, and idiopathic, and can be seen with epilepsy, measles, mumps and other childhood diseases, eclampsia, and heart stroke
What do you do when seizing?
place patient on floor and side if no spine injury, loosen restrictive clothing, remove objects that can harm, protect from injury but don’t hold them
What do you do after seizures are over?
protect airways, if blue ensure open airway providing artificial ventilations with supplemental oxygen, treat any injuries or rule out trauma may have to immobilize patient. if patient refuses make sure someone stays with them and doesn’t drive