Sodium

Alphabetical Test listing

Sodium-233

  
Sodium
  
233
  
84295.2
  
NA
  
Na
  

Sodium is the major cation of extracellular fluid; it plays an essential role in the normal distribution of water and in the maintenance of osmotic pressure in extracellular fluid compartments. Decreased levels of sodium may be caused by an excessive use of diuretics, prolonged vomiting, a decrease in the intake of sodium in the diet, and metabolic acidosis. Increased levels of sodium may be found in Cushing’s syndrome, severe dehydration, or in high levels of salt intake without an adequate supply of water.

 

  
Lithium heparin (Li hep) plasma
  
  
1.0 mL
  
0.2 mL
  

Spin

  

Lt green plasma separator (PST)

  
Serum
  
  

Spin

  

Gold serum separator (SST) tube

  

Refrigerated (preferred) - 7 days

Ambient - 7 days

  
  • Improper labels (unlabeled or mislabeled)
  • Hemolysis (some procedures)
  • Improper anticoagulant or ratio
  • Delay in transport
  • Improper storage temperature affecting results
  • Improper container
  • Leaking container resulting in compromised specimen
  • Quantity not sufficient (QNS)
  
AHL - Chemistry: C
  
Daily
  
1 day
  

Ion Selective Electrode

  

0 - 10 yrs: 135 - 143 mmol/L

Adult:        135 - 145 mmol/L

  
Age Low High
<10 yrs <128 mmol/L >160 mmol/L
Adult <120 mmol/L >160 mmol/L
  
84295
  
11/30/2001
  
09/11/2018
  
02/17/2020