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Test Code:
090-20-1300-01

Order Name:
Potassium (U-24 hrs)

 
Useful For:
Determining the cause for hyper- or hypokalemia
 
Methodology:
Ion-selective electrode diluted (Indirect)
 
AliasesName:
K+ (Potassium), U-24 hrs.
 
 
 
Test Code:
090-20-1300-01

Order Name:
Potassium (U-24 hrs)

 
Collection Specimen Or Container:
24-hour urine, Clean containner without preservative added.

Note:
1.  Please keep in refrigerated (2oC to 8oC) during collection and transportation.
2.  24-hours volume is required.
 
Specimen Testing Type:
24-hour urine, minimum volume 10 mL
 
Sub Mission Container:
Clean container
 
Rejection Criteria:
Wrong preservative type will be reject.
 
Specimen Stabillity:
Specimen Type Temperature Time
24 hours urine Refrigerated, 2oC to 8oC 2 months
Frozen, -20oC 12 months
 
 
 
Test Code:
090-20-1300-01

Order Name:
Potassium (U-24 hrs)

 
Method detail:
Ion-selective electrode diluted (Indirect)
 
Schedule:
Tested daily (24 hours)
 
Turnaround Time:
Collected specimen to report within 1.5 hours (90 mins)
 
Performing Location:
Chemistry, Laboratory Department Tel. 13224
 
Specimen Retention Time:
7 days
 
 
 
Test Code:
090-20-1300-01

Order Name:
Potassium (U-24 hrs)

 
 
Clinical Information:
Potassium is the major cation of the intracellular fluid. Disturbance of potassium homeostasis has serious consequences. 

Decreases in extracellular potassium are characterized by muscle weakness, irritability, and eventual paralysis. Cardiac effects include tachycardia, other cardiac conduction abnormalities that are apparent by electrocardiographic examination, and eventual cardiac arrest.

Hypokalemia (low potassium) is common in vomiting, diarrhea, alcoholism, and folic acid deficiency. Additionally, >90% of hypertensive patients with aldosteronism have hypokalemia.

Abnormally high extracellular potassium levels produce symptoms of mental confusion; weakness, numbness and tingling of the extremities; weakness of the respiratory muscles; flaccid paralysis of the extremities; slowed heart rate; and eventually peripheral vascular collapse and cardiac arrest. Hyperkalemia may be seen in end-stage renal failure, hemolysis, trauma, Addison's disease, metabolic acidosis, acute starvation, dehydration, and with rapid potassium infusion.
 
Reference Value:
25 –125 mmol/24h
 
Interpretation:
Hypokalemia reflecting true total body deficits of potassium (K+) can be classified into renal and nonrenal losses based on the daily excretion of K+ in the urine.
 
Clinical Reference:
  1. Manufacturer’s reagent package insert, Architect® ICT (Na+, K+, Cl-) Sample Diluent, Abbott Laboratories, Diagnostic Division, Abbott Park IL 60064 , May 2016.
  2. http://www.mayomedicallaboratories.com (Retrieved: 01 Jan 2019)