Diabetic Emergencies and Altered Mental Status Flashcards

1
Q

Reticular Activating System (RAS)

A

series of neurologic circuits in the brain that control the functions of staying awake, paying attention, and sleeping
O2 is needed to perfuse brain tissue, glucose is needed to nourish brain tissue, and water is needed to keep brain tissue hydrated

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2
Q

Diabetes Mellitus

A

“sugar Diabetes” or just “diabetes”, condition brought about by decreased insulin production or the inability of the body cells to use insulin properly
Type 1 insulin dependent occurs when pancreatic cells fail to function properly and insulin is not secreted normally
Type 2 non-insulin dependent body cells fail to utilize insulin properly, pancreas may be secreting enough insulin but the body is unable to use it to move glucose out of the blood and into the cells.

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3
Q

Diabetic Emergencies

A

Take too much insulin, transferring glucose into the cells to quickly and causing a rapid depletion of available sugar
Reducing sugar intake by not eating
overexercises or overexerts
vomits a meal

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4
Q

Diabetic Ketoacidosis (DKA)

A

condition that occurs as the result of hyperglycemia characterized by dehydration, altered mental status and shock.

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5
Q

Hypoglycemia vs. Hyperglycemia

A

Hyperglycemia usually has a slower onset
hypoglycemia tends to come on suddenly seizures may occur
hyperglycemic patients often have warm, red, dry skin.
hypoglycemic patients have cold, pale, moist, or clammy skin
Hyperglycemic patients have acetone breath
hypoglycemic patients do not

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6
Q

Seizure

A

sudden change in sensation, behavior, or movement. most severe form produces violent muscle contractions called convulsions

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7
Q

partial seizure

A

seizure that affects only one part or one side of the brain

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8
Q

generalized seizure

A

seizure that affects both sides of the brain

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9
Q

tonic- clonic seizure

A

generalized seizure in which the patient loses consciousness and has jerking movements of paired muscle groups

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10
Q

postictal phase

A

convulsions stop, patient may regain consciousness and enter a state of drowsiness and confusion, or may remain unconscious. headache is common

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11
Q

aura

A

sensation experienced by a seizure patient right before the seizure, which might be a smell, sound, or general feeling

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12
Q

Tonic phase

A

body becomes rigid, stiffening for no more than 30 seconds. breathing may stop, patient may bit tongue, and bowel and bladder control could be lost.

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13
Q

Clonic phase

A

body jerks about violently, usually for no more than 1 or 2 minutes. the patient may foam at the mouth and drool. face and lips often become cyanotic

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14
Q

Causes of Seizures

A
Hypoxia
Stroke
Traumatic brain injury
Toxins
Hypoglycemia
Brain Tumor
Congenital Brain Defects 
Infection
Metabolic
Idiopathic
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15
Q

Seizures may be seen with…

A

Epilepsy
Measles, mumps, and other childhood diseases
Eclampsia (severe complication of pregnancy)
Heat Stroke

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16
Q

Epilepsy

A

Medical condition that causes Seizures

unbrella term used when a person has multiple seizures from an unknown cause

17
Q

Status Epilepticus

A

prolonged seizure or situation when a person suffers two or more convulsive seizures without regaining full consciousness

18
Q

Stroke

A

condition of altered function caused when an artery in the brain in blocked or ruptured, disruption the supply of oxygenated blood or causing bleeding into the brain
formally called Cerebrovascular Accident (CVA)

19
Q

Ischemic stroke

A

stroke caused by a blockage.

can occur when a clot or embolism occludes an artery

20
Q

Hemorrhagic stroke

A

stroke caused by bleeding into the brain.

result of longstanding hypertension or an aneurysm

21
Q

Signs and Symptoms of Stroke

A

Hemiparesis (one sided weakness), headache (less common), difficult to communicat with patient, loss of ability to use words or difficulty in using words (expressive aphasia), or the patient may be able to communicate well but not understand you.

22
Q

Subarachnoid Hemorrhage

A

Particular kind of bleeding from an artery under the arachnoid layer of the meninges (several layers of tissue that surrounds the brain and spinal cord)
Patient cried out in pain, clutched his head, and collapsed, this is important information for hospital staff

23
Q

Transient Ischemic Attack (TIA)

A

Mini Stroke
all normal signs of a stroke but has complete resolution of symptoms without treatment
small clots may be temporarily blocking circulation to part of the brain. when clot breaks up patients symptoms resolve.

24
Q

Syncope

A

fainting

25
Q

Causes of Dizziness and syncope

A

Hypovolemic Causes, Metabolic and Structural causes, Environmental/ Toxicological Causes, and Cardiovascular Causes

26
Q

Hypovolemic Causes

A

Hypovolemia or low fluid/ blood volume, can cause dizziness or syncope when patient attempts to sit up or stand. dehydration, internal bleeding, trauma

27
Q

Metabolic and Structural Causes

A

something is wrong with the brain or the structures near it, hypoglycemia

28
Q

Environmental/ Toxicological Causes

A

Alcohol, drugs, Carbon Monoxide poisoning, panic attacks and anxiety attack leading to hyperventilation

29
Q

Cardiovascular Causes

A

dysrhythmia, greater cardiac output, or low cardiac output