Potassium-211

Test info

  
Potassium
  
211
  
84132.1
  
K

Specimen

  
Lithium heparin (Li hep) plasma
  
  
1.0 mL
  
0.2 mL
  
  • If the patient has a white blood cell (WBC) count of >50,000, for chemistry testing that includes potassium, the sample should be collected in a gold serum separator (SST) tube and not a Lt green plasma separator (PST) tube.
  • Immediately following collection, mix sample thoroughly by gently inverting 8 - 10 times to prevent clotting
  

Spin within two (2) hours of sample collection

 

  

Lt green plasma separator (PST)

 

  
Serum
  
  

Immediately following collection, mix sample by gently inverting 5 times

  
  1. Allow sample to clot for a minimum of 30 minutes
  2. Spin within two (2) hours of sample collection
  

Gold serum separator (SST) tube

  

Refrigerated (preferred) - 7 days

Ambient - 7 days

  
  • Improper labels (unlabeled or mislabeled)
  • Hemolysis
  • Improper anticoagulant or ratio
  • Delay in transport
  • Improper storage temperature affecting results
  • Inappropriate timing of collection
  • Improper container
  • Leaking container resulting in compromised specimen
  • Quantity not sufficient (QNS)

Performance

  
AHL - Chemistry: C
  
Daily
  
1 day
  

Ion Selective Electrode - Indirect

Clinical and Interpretive info

  

 

Age Range (mmol/L)
 0 - 7 days  3.7 - 5.7
 1 week - 1 year  4.1 - 5.3
 1 - 12 years  3.4 - 4.7
Adult  3.5 - 5.0
  

Low:  < 2.8 mmol/L

High: > 6.0 mmol/L

Billing

  
84132

Tracking

  
11/30/2001
  
02/12/2020
  
12/02/2021