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Information about Fatigue (medical)

“Exhaustion” redirects here. For other uses, see Exhaust.
“Fatigue (physical)” redirects here. For material fatigue, see Fatigue (material).


Name of Symptom/Sign:
Fatigue
Classifications and external resources
ICD-10R53.
ICD-9780.7
DiseasesDB30079
MedlinePlus003088
MeSHD005221
The word fatigue is used in everyday living to describe a range of afflictions, varying from a general state of lethargy to a specific work-induced burning sensation within one's muscles. It can be both physical and mental. Physical fatigue is the inability to continue functioning at the level of one's normal abilities[1][2][3]. It is in everyday life, but usually becomes particularly noticeable during heavy exercise. Mental fatigue, on the other hand, rather manifests in somnolence.

Types

Physical fatigue

Main article: Muscle weakness
Physical fatigue or muscle weakness (or "lack of strength") is a direct term for the inability to exert force with ones muscles to the degree that would be expected given the individual's general physical fitness. A test of strength is often used during a diagnosis of a muscular disorder before the etiology can be identified. Such etiology depends on the type of muscle weakness, which can be true or perceived as well as central or peripheral. True weakness is substantial, while perceived rather is a sensation of having to put more effort to do the same task. On the other hand, central muscle weakness is an overall exhaustion of the whole body, while peripheral weakness is an exhaustion of individual muscles.

Mental fatigue

See also: Somnolence
In addition to physical, fatigue also includes mental fatigue, not necessarily including any muscle fatigue. Such a mental fatigue, in turn, can manifest itself both as somnolence (decreased wakefulness) or just as a general decrease of attention, not necessarily including sleepiness. In any case, this can be dangerous when performing tasks that require constant concentration, such as driving a vehicle. For instance, when a person is sufficiently somnolent, he or she may experience microsleeps. However, objective cognitive testing should be done to differentiate the neurocognitive deficits of brain disease from those attributable to tiredness.

Causes

Fatigue is typically the result of working, mental stress, jet lag or active recreation, depression, and also boredom, disease and lack of sleep. It may also have chemical causes, such as poisoning or mineral or vitamin deficiencies.

The sense of fatigue is believed to originate in the reticular activating system of the lower brain. Musculoskeletal structures may have co-evolved with appropriate brain structures so that the complete unit functions together in a constructive and adaptive fashion.[4] The entire systems of muscles, joints, and and functions plus parts of the brain evolve and function together in a unitary way.[5]

Diseases

Temporary fatigue is likely to be e.g. common cold. Chronic fatigue, on the other hand, meaning of six months or more duration, is a symptom of a large number of different diseases on conditions.

Medications

See also

References

1. ^ Gandevia SC (1992). "Some central and peripheral factors affecting human motoneuronal output in neuromuscular fatigue". Sports medicine (Auckland, N.Z.) 13 (2): 93-8. PMID 1561512. 
2. ^ Hagberg M (1981). "Muscular endurance and surface electromyogram in isometric and dynamic exercise". Journal of applied physiology: respiratory, environmental and exercise physiology 51 (1): 1-7. PMID 7263402. 
3. ^ Hawley JA, Reilly T (1997). "Fatigue revisited". Journal of sports sciences 15 (3): 245-6. PMID 9232549. 
4. ^ Edelman, Gerald Maurice (1989). The remembered present: a biological theory of consciousness. New York: Basic Books. ISBN 0-465-06910-X. 
5. ^ Kelso, J. A. Scott (1995). Dynamic patterns: the self-organization of brain and behavior. Cambridge, Mass: MIT Press. ISBN 0-262-61131-7. 
6. ^ Fatigue caused by medications.

External links

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Symptoms and signs (R00-R69, )
Circulatory and
respiratory systems		Tachycardia - Bradycardia - Palpitation - Heart murmur - Nosebleed - Hemoptysis - Cough - abnormalities of breathing (Dyspnea, Orthopnoea, Stridor, Wheeze, Cheyne-Stokes respiration, Hyperventilation, Mouth breathing, Hiccup, Bradypnea, Hypoventilation) - Chest pain - Asphyxia - Pleurisy - Respiratory arrest - Sputum - Bruit
Digestive system and abdomenAbdominal pain - Acute abdomen - Nausea - Vomiting - Heartburn - Dysphagia - Flatulence - Burping - Fecal incontinence - Encopresis - Hepatomegaly - Splenomegaly - Hepatosplenomegaly - Jaundice - Ascites - Fecal occult blood - Halitosis
Skin and subcutaneous tissuedisturbances of skin sensation (Hypoesthesia, Paresthesia, Hyperesthesia) - Rash - Cyanosis - Pallor - Flushing - Petechia - Desquamation - Induration
Nervous and
musculoskeletal systems		abnormal involuntary movements (Tremor, Spasm, Fasciculation, Athetosis) - Gait abnormality - lack of coordination (Ataxia, Dysmetria, Dysdiadochokinesia, Hypotonia) - Tetany - Meningism - Hyperreflexia
Urinary systemDysuria - Vesical tenesmus - Urinary incontinence - Urinary retention - Oliguria - Polyuria - Nocturia
Cognition, perception,
emotional state and behaviour		Anxiety - Somnolence - Coma - Amnesia (Anterograde amnesia, Retrograde amnesia) - Dizziness/Vertigo - smell and taste (Anosmia, Ageusia, Parosmia, Parageusia)
Speech and voicespeech disturbances (Dysphasia, Aphasia, Dysarthria) - symbolic dysfunctions (Dyslexia, Alexia, Agnosia, Apraxia, Acalculia, Agraphia) - voice disturbances (Dysphonia, Aphonia)
General symptoms and signsFever (Hyperpyrexia) - Headache - Chronic pain - Malaise - Fatigue - Fainting (Vasovagal syncope) - Febrile seizure - Shock (Cardiogenic shock) - Lymphadenopathy - Edema (Peripheral edema, Anasarca) - Hyperhidrosis (Sleep hyperhidrosis) - Delayed milestone - Failure to thrive - food and fluid intake (Anorexia, Polydipsia, Polyphagia) - Cachexia - Xerostomia - Clubbing
Exhaust may refer to:

In mathematics:
  • Proof by exhaustion, proof by examining all individual cases
  • Exhaustion by compact sets, in analysis, a sequence of compact sets that converges on a given set

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Metal fatigue redirects here. For the computer game, see Metal Fatigue.


'''
Mechanical failure modes
Buckling
Corrosion
Creep
Fatigue
Fracture
Melting
Thermal shock
Wear
Yielding
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The term symptom (from the Greek σύμπτωμα meaning 'chance', 'mishap' or 'casualty', itself derived from συμπιπτω
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Simply, a sign is an indication of some fact or quality; and, in everyday English, a medical sign is an "objective" indication of some medical fact or quality that is detected by a physician during a physical examination of a patient—such as elevated
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For other uses of "ICD", see ICD (disambiguation).


The International Statistical Classification of Diseases and Related Health Problems (most commonly known by the abbreviation ICD
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List of ICD-10 codes. The version for 2007 is available online at [1]

Chapter Blocks Title
I Certain infectious and parasitic diseases
II Neoplasms
III Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism
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For other uses of "ICD", see ICD (disambiguation).


The International Statistical Classification of Diseases and Related Health Problems (most commonly known by the abbreviation ICD
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The following is a list of codes for International Statistical Classification of Diseases and Related Health Problems. These codes are in the public domain.

See also


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The Diseases Database is a free website that provides information about the relationships between medical conditions, symptoms, and medications.

It directly integrates the Unified Medical Language System.

External links

  • Diseases Database

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MedlinePlus is a website containing health information from the world's largest medical library, the United States National Library of Medicine. The site is intended to be used by health care providers and patients, and designed to provide up-to-date, authoritative information.
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Medical Subject Headings (MeSH) is a huge controlled vocabulary (or metadata system) for the purpose of indexing journal articles and books in the life sciences. Created and updated by the United States National Library of Medicine (NLM), it is used by the MEDLINE/PubMed
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Physical exercise is manual activity that develops or maintains physical fitness and overall health. It is often practiced to strengthen muscles and the cardiovascular system, and to hone athletic skills.
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Somnolence
Classifications and external resources

ICD-10 R 40.0
ICD-9 780.09

Somnolence (or "drowsiness") is a state of near-sleep, a strong desire for sleep, or sleeping for unusually long periods.
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Muscle weakness
Classification & external resources

ICD-10 M62.8
ICD-9 728.87 ( 728.9 before 10/01/03)

DiseasesDB 22832

MeSH D018908 Muscle weakness
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MUSCLE (multiple sequence comparison by log-expectation) is public domain, multiple sequence alignment software for protein and nucleotide sequences.
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Physical fitness is used in two close meanings - general fitness (a state of health and well-being) and specific fitness (a task-oriented definition based on the ability to perform specific aspects of sports or occupations).
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In general, diagnosis (plural diagnoses) has two distinct dictionary definitions. The first definition is "the recognition of a disease or condition by its outward signs and symptoms", while the second definition is "the analysis of the underlying physiological/biochemical
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Etiology (alternately aetiology, aitiology) is the study of causation. Derived from the Greek αίτιολογία, "giving a reason for" (
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Somnolence
Classifications and external resources

ICD-10 R 40.0
ICD-9 780.09

Somnolence (or "drowsiness") is a state of near-sleep, a strong desire for sleep, or sleeping for unusually long periods.
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Somnolence
Classifications and external resources

ICD-10 R 40.0
ICD-9 780.09

Somnolence (or "drowsiness") is a state of near-sleep, a strong desire for sleep, or sleeping for unusually long periods.
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Wakefulness refers to the state of being awake and is the behavioral manifestation of the metabolic state of catabolism. It is the daily recurring period in an organism's life during which consciousness, awareness and all behaviors necessary for survival, i.e.
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Attention is the cognitive process of selectively concentrating on one aspect of the environment while ignoring other things. Examples include listening carefully to what someone is saying while ignoring other conversations in the room (the cocktail party effect) or listening to a
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Vehicles are non-living means of transport. They are most often man-made (e.g. bicycles, cars, motorcycles, trains, ships, and aircraft), although some other means of transport which are not made by man can also be called vehicles; examples include icebergs and floating tree trunks.
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Sleep deprivation is a general lack of the necessary amount of sleep. This may occur as a result of sleep disorders, active choice or deliberate inducement such as in interrogation or for torture.
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labour (or labor) is a measure of the work done by human beings. It is conventionally contrasted with such other factors of production as land and capital. There are theories which have created a concept called human capital (referring to the skills that workers possess, not
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Please help recruit one or [ improve this article] yourself. See the talk page for details.
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Jet lag
Classification & external resources

ICD-10 G47.2
ICD-9 307.45 , 780.50 327.35

Jet lag, also jetlag or jet-lag, is a physiological condition which is a consequence of alterations to the circadian rhythm.
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Recreation or fun is the use of time in a manner designed for therapeutic refreshment of one's body or mind. While leisure is more likely a form of entertainment or rest, recreation is active for the participant but in a refreshing and diverting manner.
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Depression
Classification & external resources

ICD-10 F 32. , F 33.
ICD-9 296

OMIM 608516
DiseasesDB 3589
MedlinePlus 003213
eMedicine med/532  

Clinical depression (also called major-depressive disorder, or
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Boredom has been defined by Fisher in terms of its central psychological processes: “an unpleasant, transient affective state in which the individual feels a pervasive lack of interest in and difficulty concentrating on the current activity.
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