Consciousness - decreased
Alternate Names : Stuporous, Mental status - decreased, Loss of alertness, Decreased consciousness, Alertness - decreased, Changes in consciousness, Obtundation, Coma, Unresponsiveness
Consciousness - decreased
Decreased consciousness is reduced alertness or awareness.
Review Date: 04/21/2009
Reviewed By: Jacob L. Heller, MD, Emergency Medicine, Virginia Mason Medical Center, Seattle, Washington, Clinic. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
Loss of Consciousness
Overview, Causes, & Risk Factors
Symptoms & Signs
Diagnosis & Tests
Prevention & Expectations
Treatment & Monitoring
Consciousness is decreased to varying degrees. Repeated stimuli arouse patients only briefly or not at all.
Depending on the cause, other symptoms develop (see Table 3: Coma and Impaired Consciousness: Findings by Location*): ...
Disorders of consciousness are medical conditions that inhibit consciousness. This category generally includes minimally conscious state and persistent vegetative state, but sometimes also includes the less severe locked-in syndrome and more severe chronic coma.
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Also known as astatic seizures or drop attacks, these seizures involve a brief loss of consciousness in the affected person. Once it is over, the person is usually unaware of what happened.
knsns noun the state of being mentally alert and knowing what is happening to lose consciousness to ...
Sense of awareness of self and of the environment.
That which can be observed in patients. Research that uses patients to test new treatments, as opposed to laboratory testing or research in animals.
Consciousness and the Brain
The brain is the main organ responsible for maintaining consciousness. Your brain requires adequate amounts of oxygen and glucose in order to function properly. Many substances you consume affect your brain chemistry and can help to maintain or decrease consciousness.
See All Unconsciousness "
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Unconsciousness is when the victim seems to be asleep but has lost all awareness and is not able to respond to questions or to touch or gentle shaking. A sleeping person will usually respond to a loud noise, shouting, or gentle shaking.
A partial or complete loss of consciousness ...
Self-consciousness - some people may feel embarrassed, and be reluctant to smile with parted lips.
Tooth misalignment - a large gap between the front teeth could leave not enough room for the lateral teeth (the ones next to the front teeth).
Consciousness may be lost for a few seconds in a mild injury, or for hours or days after a more severe injury. The loss of consciousness results from a blow to the head.
Consciousness - decreased
Reye syndrome is sudden (acute) brain damage (encephalopathy) and liver function problems of unknown cause.
Consciousness typically returns when blood sugar reaches a normal level.
Previous: Tests and diagnosis
Next: Prevention ...
Stare into space
Have convulsions (abnormal jerking of the muscles)
Experience abnormalities of sensation or emotion ...
If you are answering for someone else: Is the person unconscious now?
(If you are answering this question for yourself, say no.) ...
Loss of consciousness lasting less than 30 minutes or no loss of consciousness at all
Loss of memory (amnesia) lasting less than 24 hours ...
Loss of consciousness due to alcohol intake, seizures, stroke, or other conditions
Impaired swallowing function due to poor dentition or a history of Parkinson's disease, Lou Gehrig's disease, stroke, or other conditions
History of heartburn (also called GERD)
History of lung disease ...
Loss of consciousness and body tone, followed by twitching and relaxing muscle contractions
Loss of control of body functions
May be a short period of no breathing (30 seconds) and the person may turn a shade of blue ...
Loss of consciousness (lasting seconds to minutes)
Memory loss of the events surrounding the injury
Problems with thinking or concentration ...
loss of consciousness
chest pain caused by activity or exercise
chest pain with a cold sweat
shortness of breath
palpitations (being consciously aware of an abnormality in heartbeat).
loss of consciousness
fits or seizures, when the body suddenly moves uncontrollably
problems with the senses, such as loss of hearing or double vision
Glasgow Coma Scale ...
Loss of consciousness, uncommonly
Hypoglycemia may also cause these other signs and symptoms:
Heart palpitations ...
Loss of consciousness
Prior to cardiac arrest, some patients report the following symptoms or warning signs in the weeks before the event: ...
Loss of consciousness
Respiratory failure, possibly leading to death
Showing these signs and symptoms does not necessarily mean that a person has been exposed to arsine.
Loss of consciousness
Anaphylactic shock can be caused by an allergic reaction to a drug, food, serum, insect venom, allergen extract, or chemical.
loss of consciousness
transient ischemic attack (TIA, a brief stroke-like condition)
hemiplegia (paralysis of one side of the body)
embolus (clot in the blood vessel)
hematoma (an area of swelling caused by a collection of blood)
cerebrovascular accident (stroke) ...
loss of consciousness
altered mental state
vomiting or severe nausea
weakness, numbness, or paralysis, especially on one side of the body
sudden, severe headache ...
Loss of consciousness lasting less than 30 minutes
Alteration of consciousness or mental state lasting up to 24 hours
Posttraumatic amnesia up to 24 hours
Glasgow Coma Scale (best available score during the first 24 hours) of 13-15 ...
loss of consciousness
neurological signs (other than a headache)
abnormal heart rhythm or lack of blood to the heart
women who are pregnant.
Loss of consciousness
The symptoms of hypoglycemia may resemble other conditions or medical problems. Always consult your doctor for a diagnosis.
How is hypoglycemia diagnosed?
If their consciousness is impaired don't give them anything to eat or drink, as they may not be able to swallow or drink it properly.
If the condition does not improve:
Monitor the level of response and look for any other possible causes.
level of consciousness
Neurologic score (
4 = stuporous, arousal only after vigorous stimulation; inconsistently follows commands)
Encephalopathy score (
3 = major confusion, daytime sleepiness or agitation)
Glasgow Coma Scale score lower than 8 ...
Change in consciousness or mental status
High fever (higher than 101 degrees Fahrenheit) and chills
Inability to urinate ...
Delirium or confusion
Drowsy, lethargic, hard to arouse ...
a state of consciousness in which the individual eliminates environmental stimuli from awareness so that the mind has a single focus, producing a state of relaxation and relief from stress. A wide variety of techniques are used to clear the mind of stressful outside interference.
i regained consciousness again quite soon, but i was scared stiff so i started crying (so embarrassing!) but yeah, that was my unfortunate experience, and when i think back to it, i still blame my mum! ...
The loss of consciousness and convulsions are present in every patient, but there are other symptoms that can occur as well that are not necessarily present in every patient who has had a seizure. Some patients can sense when they are about to have a seizure, but this is not present in everyone.
You must watch your blood sugar level closely. Regular testing of your blood sugar may allow you to detect and treat hypoglycemia before it causes serious symptoms. You may be able to prevent ever having low blood sugar.
Seizures or unconsciousness
Take or send the poison container with your child to help the doctor determine what was swallowed. If your child does not have these symptoms, call your local poison control center at 800-222-1222 or your child's doctor.
The return to consciousness is gradual and should occur within a few moments.
Loss of urine is common.
Often people will be confused briefly after a generalized seizure.
Sudden loss of consciousness (syncope)?
Cerebral hypo-perfusion from sudden drop in blood pressure, noting that BP is a function of: Cardiac output x systemic vascular resistance; and CO is a function of heart rate x stroke volume; and stroke volume is a function of inotropy and pre-load.
A brief loss of consciousness caused by a temporary deficiency of oxygen in the brain; a swoon. [Heritage].
Example from an 1896 death certificate from West Virginia:
Altered level of consciousness
Complex seizure features (focal, prolonged, or recurrent) ...
ENCOURAGEMENT"The consciousness that you are doing those things which God can approve will make you strong in His strength; and, by copying Christ the great Pattern, you may be able to be the blessing He intends for you to be in this world.
Passing out (losing consciousness).
Feeling very dizzy or lightheaded, like the person may pass out.
Feeling very weak or having trouble standing up.
Being less alert. The person may suddenly be unable to respond to questions, or he or she may be confused, restless, or fearful.
Shown to lower serum cholesterol levels in people who consumed it in place of saturated fat ALOC Abbreviation for Acute Loss Of Consciousness Alograft Allogenetic graft or homograft)--A graft between two individuals who are of the same species (eg. human) but have genetic differences Aloe ...
Symptoms include wheezing, itching, nasal congestion, hives, immediate intense burning of hands and feet, collapse with severe drop in blood pressure, loss of consciousness and cardiac arrest.
Epilepsy: a disorder of the nervous system, with either mild and occasional loss of attention or sleepiness (petit mal) or by severe convulsions with loss of consciousness (grand mal). Commonly caused by oxygen starvation during a difficult birth. Synonyms: falling sickness, fits.
seizure A sudden, uncontrollable wave of electrical activity in the brain that causes involuntary bodily movement, a change in attention or a loss of consciousness.
These problems can produce seizures, unusual body movements, a loss of consciousness or changes in consciousness, as well as mental problems or problems with the senses.
Permalink for epilepsy
epinephrine A hormone and neurotransmitter. Also called adrenaline.
Permalink for epinephrine ...
Catalepsy - Condition which causes Seizures/trances or unconsciousness.
Catarrh - Inflammation of a mucous membrane, especially of the air passages of the head and throat, with a free discharge.
Symptoms may include swelling of the tongue, throat, and trachea, which can result in difficulty breathing, shock and loss of consciousness. If not treated rapidly, anaphylaxis can be fatal.
Tonic-clonic ("grand mal") seizures involve falling, loss of consciousness, and muscle spasms throughout the body, lasting 1 to 2 minutes. Bladder control is sometimes lost. On regaining consciousness, the person may be very tired and confused.
Fainting is a loss of consciousness, falling down or needing to lie down, followed by spontaneous recovery. Fainting by itself is not a problem, but it could be a sign of a serious health condition.
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To reduce scarring, keep the skin area out of the sun.
If the patient is in the early stages of anaphylaxis and hasn’t yet lost consciousness and is still normotensive, give epinephrine I.M. or subcutaneously (S.C.), helping it move into the circulation faster by massaging the injection site.
Gower syndrome (situational syncope): The temporary loss of consciousness in particular kinds of situations. (Syncope is temporary loss of consciousness or, in plain English, fainting).
Dissociative trance disorder: single or episodic disturbances in the state of consciousness, identity, or memory that are indigenous to particular locations and cultures.
Is consciousness a biological process, or is there a separate spirit or soul within the flesh-and-bone body that makes it alive? While it might seem that a soul would be a prerequisite for having an afterlife, there is an alternative possibility.
A temporary decrease in blood flow to the brain results in unconsciousness, or fainting. Many disorders, some of them serious, can cause this. 'In adolescents,' says pediatric neurologist Dr.
Fainting (syncope) - a loss of blood supply to the brain causing loss of consciousness, typically after loss of blood output by the heart. Many thints can trigger the "common faint", such as emotions, rapidly assuming an upright position, and even urination.
Hypoxia (low blood oxygen) ...
reflects a failure to integrate various aspects of identity, memory and consciousness. Each personality state may be experienced as if it is a distinct individual, with a unique history, image, identity, name, etc.
pseudomembranous Colitis, spastic Colitis, ulcerative Collagen Collagen disease Collagen injection Collagenous colitis Collapsed lung Collarbone Collateral Collateral Blood Vessels Collateral knee ligament, lateral Collateral knee ligament, medial Collective unconscious (universal consciousness) ...
The disease presents with headache, fever and eventually seizures and neurological deficits; it rapidly progresses if untreated to impairment of consciousness and coma. Herpes simplex virus encephalitis is the prototype of this type of infection.
A coma, sometimes also called persistent vegetative state, is a profound or deep state of unconsciousness. Persistent vegetative state is not brain-death. An individual in a state of coma is alive but unable to move or respond to his or her environment.
Paroxysmal attacks of impaired consciousness, occasionally accompanied by spasm or twitching of cephalic muscles, which usually can be brought on by hyperventilation; depending on the type and severity of the absence, ...
Dissociative disorder NOS include some symptom such as disruption in the usually integrated function of consciousness, memory, identified or perception of the environment.
Specific movements of the arms and legs and/or the face may occur with loss of consciousness. A yell or cry often precedes the loss of consciousness.
1 - Interdisciplinary Consciousness Studies
Emilios Bouratinos, MA, Ekali, Greece - Dec 1st 1997
Perspectives - Vol. 3, No. 1 - Jan-Mar 1998 Book Reviews
Various Authors - Dec 1st 1997
Perspectives - Vol. 3, No. 1 - Madness in the Method
Mary Midgley, Newcastle, England - Dec 1st 1997 ...
It can be started quickly and causes a rapid loss of consciousness. It is used when an urgent vaginal or caesarean delivery is required, as in rare instances of problems with the baby or vaginal bleeding. In these circumstances, general anaesthesia is quite safe for the baby.
The most useful observations are those of the pulse rate, blood pressure, consciousness, skin temperature, peripheral perfusion, and urinary output. If a patient is critically ill, make sure that, during the first few hours, some competent person checks: (1) His level of consciousness.
The child may appear reasonably well, then suddenly loses consciousness, the eyes roll up and the child either remains floppy or begins to jerk all the limbs. The fits usually last a few minutes only, commonly not more than 10 minutes and the child recovers spontaneously.
Simple partial seizures do not affect consciousness. Sometimes the person just notices unusual feelings.
Complex partial seizures. These seizures occur through a larger area of the brain. A loss of consciousness occurs.
network inhibition hypothesis proposed pathophysiological mechanism for complex behavioral phenomena and impaired consciousness in complex partial seizures; ...
Absence or petit mal seizures - the person may experience a short period of impaired consciousness, followed by staring into space and perhaps mild twitching of muscle groups
Focal motor seizure - repeated twitching movements in the face or limbs ...
Most people with ADPEAF have seizures described as simple partial seizures, which do not cause a loss of consciousness. These seizures are thought to begin in a part of the brain called the lateral temporal lobe.
If your aneurysm ruptures, you may suddenly feel intense weakness, dizziness, or back pain, and you may lose consciousness. This is a life- threatening situation and you should seek medical attention immediately.
What causes an abdominal aortic aneurysm?
In particular, the brain stem is very important for basic alertness and the level of consciousness. Significant damage to the brain stem can lead to impairment of consciousness, leading to coma or death.
Untreated, this condition may cause a person to lose consciousness and become very ill. Diabetes associated with being overweight may have minimal symptoms and may be diagnosed when your doctor orders blood tests. Your doctor measures the glucose level in the blood.
Sudden onset meningitis features shock, internal bleeding, purple spots, and reduced consciousness at the very outset, with a rapidly progressive course often resulting in death within 24 hours.
When handling a case of aspiration, a doctor may determine certain risk factors such as difficulty in airway management, type of surgery performed, level of unconsciousness, trauma, pain and stress.
Usually known as the blue-ringed octopus, a bite from this cephalopod can cause respiratory paralysis (but not unconsciousness) within 30 minutes of a painless bite by the beak on the underside of this small octopus. It is normally some 8-11cm across, and a dull brown colour.
Biofeedback is a way to enhance a body signal so that you are aware of something that usually occurs at a level below consciousness. An electronic device provides information about a body function (such as heart rate) so that you can learn to control that function.
A person having a partial seizure may lose consciousness. There may be twitching of a finger or several fingers, a hand or arm, or a leg or foot. Certain facial muscles might twitch. Speech might become slurred, unclear, or unusual during the seizure.
The main warning signs heart muscle disease is sudden unconsciousness, chest pain or angina, arrhythmias or rapid palpitations and breathlessness. Primary cardiomyopathy does not have any specific causes.
Your thoughts become focused on what could have happened if you had lost consciousness or were unable to maintain control of your car when you were driving over that bridge. You think, "What if I drove off the bridge? What if I got into a car accident?
If the effect on the bronchi becomes severe enough to impede exhalation, carbon dioxide can build up in the lungs and lead to unconsciousness and death.
Sleep is the state of natural rest observed in humans and is characterized by a reduction in voluntary body movement, temporary blindness, decreased reaction to external stimuli, loss of consciousness, an increased rate of anabolism (the synthesis of cell structures), ...
A condition characterized by recurrent episodes of daytime somnolence and lapses in consciousness (microsomnias) that may be associated with automatic behaviors and AMNESIA. CATAPLEXY; SLEEP PARALYSIS, and hypnagogic HALLUCINATIONS frequently accompany narcolepsy.
Does a person with a concussion always lose consciousness?
No. Most of the time people who have concussions do not lose consciousness ("black out"). Many people believe that if they didn't black out they are fine, but that's not true.
Mild traumatic brain injury refers to brief changes in or loss of consciousness. Severe traumatic brain injury refers to longer periods of unconsciousness and memory loss around the event.
Fainting is a form of unconsciousness that is quick and brief, often due to low blood sugar or standing in one place for too long. Fainting can also be caused by a more serious medical matter.
The fourth state is called Transcendental Consciousness, which can be maintained as the person practicing TM goes about his daily life.
The fifth state, which is called Cosmic Consciousness, is part of the enlightenment that occurs to people who practice transcendental meditation.
Deceased donors are individuals who have suffered brain death following a massive brain injury such as severe head trauma or major stroke, which means that even though many of their bodily functions continue, they have no prospect of returning to consciousness.
Locked-in syndrome is caused by damage to certain areas of the lower brain and brainstem rather than the upper brain which is responsible for consciousness and cognition.
See also: What is the meaning of Death, Emergency, Fusion, Blood pressure, Prevention?