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Descriptor in English: Potassium
Descriptor in Spanish: Potasio
Descriptor in Portuguese: Potássio
Descriptor in French: Potassium
Tree number(s): D01.268.549.550
D01.268.557.575
D01.552.528.652
D01.552.547.650
SP4.097.063.974
Scope note: An element in the alkali group of metals with an atomic symbol K, atomic number 19, and atomic weight 39.10. It is the chief cation in the intracellular fluid of muscle and other cells. Potassium ion is a strong electrolyte that plays a significant role in the regulation of fluid volume and maintenance of the WATER-ELECTROLYTE BALANCE.
Annotation: /blood: note also HYPERKALEMIA and HYPOKALEMIA; POTASSIUM, DIETARY is also available
Allowable Qualifiers: AD administration & dosage
AE adverse effects
AG agonists
AN analysis
BL blood
CF cerebrospinal fluid
CH chemistry
CL classification
EC economics
HI history
IM immunology
IP isolation & purification
ME metabolism
PD pharmacology
PH physiology
PK pharmacokinetics
PO poisoning
RE radiation effects
SD supply & distribution
ST standards
TO toxicity
TU therapeutic use
UR urine
See also the descriptors: Hyperkalemia MeSH
Hypokalemia MeSH
Potassium Isotopes MeSH
Potassium Radioisotopes MeSH
DeCS UI: 11626
Descriptor UI: D011188
Date Established: 1966/01/01
Date of Entry: 1999/01/01
Revision Date: 2014/06/12
Potassium - Preferred
Concept UI M0017374
Scope note An element in the alkali group of metals with an atomic symbol K, atomic number 19, and atomic weight 39.10. It is the chief cation in the intracellular fluid of muscle and other cells. Potassium ion is a strong electrolyte that plays a significant role in the regulation of fluid volume and maintenance of the WATER-ELECTROLYTE BALANCE.
Preferred term Potassium



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