Chloride, timed urine-70

Test info

  
Chloride, timed urine
  
70
  
82436.1
  
CLT
  

Chloride is the major extracellular anion. The majority of ingested chloride is absorbed, and the excess is excreted along with other ions into the urine.

Low levels of chloride are observed in the case of prolonged vomiting accompanied by the loss of hydrochloric acid (HCl), in some cases of metabolic acidosis in which there is an increased accumulation of organic anions, in critical cases of Addison’s disease, and in kidney disease resulting in loss of salt.

Elevated levels of chloride are observed in metabolic acidosis associated with prolonged diarrhea and with loss of sodium bicarbonate (NaHCO3), and in the case of renal tubular diseases in which there is a decreased excretion of hydrogen ion (H+), which causes in turn a decrease in the reabsorption of bicarbonate ion (HCO3–). Elevated levels of serum chloride are also implicated in certain cases of hyperparathyroidism.

 

Specimen

  
24 hr urine collection
  
8 mL aliquot of a 24 hr urine collection
  
  
  1. Record total urine volume on request form and/or aliquot.
  2. Mix well
  3. Transfer a 10 mL aliquot to a Urine aliquot transport vial/tube - 10mL (AHL)
  

24 hour urine collection container, no additive

  
  • Total volume
  

Refrigerated (preferred) - 7 days

Ambient - 7 days

  
  • Improper labels (unlabeled or mislabeled)
  • Hemolysis (some procedures)
  • 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

Clinical and Interpretive info

  

110 - 250 mmoL/24 hrs

Billing

  
82436

Tracking

  
11/30/2001
  
08/27/2018
  
02/10/2020