Weakness
DDx
General
- Disuse of muscles
- Anemia
- Malnutrition
- Electrolyte abnormality, eg, hypercalcemia, hypokalemia, hyponatremia
- Endocrine disease, eg, hypothyroidism, diabetes mellitus, Cushing’s syndrome, Addison’s disease, hyperaldosteronism
- Chronic lung or heart disease
- Malingering
- Stroke
- Space-occupying lesion, eg, brain tumor
- Spinal cord lesion
- Multiple sclerosis
- Anterior horn cell, eg, poliomyelitis, amyotrophic lateral sclerosis (ALS), West Nile virus
- Motor nerve root, eg, disk protrusion
- Nerve plexus, eg, brachial plexus neuropathy
- Peripheral nerve, eg, diabetes mellitus, alcoholism, heavy metals, Guillain-Barré syndrome
- Neuromuscular junction, eg, myasthenia gravis, Eaton-Lambert syndrome, botulism, organophosphate poisoning, tick paralysis, drug-induced, eg, aminoglycoside
- Myopathy, eg, polymyositis, corticosteroids, hypothyroidism, alcohol
- Other: aortic dissection, periodic paralysis, eg, hypokalemic, hyperkalemic, thyrotoxic
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Last updated: December 1, 2014
Citation
Zeiger, Roni F.. "Weakness." Diagnosaurus, 4th ed., McGraw-Hill Education, 2014. Emergency Central, emergency.unboundmedicine.com/emergency/view/Diagnosaurus/114814/all/Weakness.
Zeiger RFR. Weakness. Diagnosaurus. McGraw-Hill Education; 2014. https://emergency.unboundmedicine.com/emergency/view/Diagnosaurus/114814/all/Weakness. Accessed December 10, 2024.
Zeiger, R. F. (2014). Weakness. In Diagnosaurus (4th ed.). McGraw-Hill Education. https://emergency.unboundmedicine.com/emergency/view/Diagnosaurus/114814/all/Weakness
Zeiger RFR. Weakness [Internet]. In: Diagnosaurus. McGraw-Hill Education; 2014. [cited 2024 December 10]. Available from: https://emergency.unboundmedicine.com/emergency/view/Diagnosaurus/114814/all/Weakness.
* Article titles in AMA citation format should be in sentence-case
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T1 - Weakness
ID - 114814
A1 - Zeiger,Roni F,
Y1 - 2014/12/01/
BT - Diagnosaurus
UR - https://emergency.unboundmedicine.com/emergency/view/Diagnosaurus/114814/all/Weakness
PB - McGraw-Hill Education
ET - 4
DB - Emergency Central
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