PROCEDURE MANUAL FOR THE i-STAT SYSTEM
25
REV. DATE: 16-Oct-12 ART: 714446-00L
CLINICAL SIGNIFICANCE
Analyte Some Causes of
Increased Values
Some Causes of
Decreased Values
Sodium
Dehydration
Diabetes insipidus
Salt poisoning
Skin losses
Hyperaldosteronism
CNS disorders
Dilutional hyponatremia
(cirrhosis)
Depletional hyponatremia
Syndrome of inappropriate ADH
Potassium
Renal glomerular disease
Adrenocortical insufficiency
Diabetic Ketoacidosis (DKA)
Sepsis
In vitro hemolysis
Renal tubular disease
Hyperaldosteronism
Treatment of DKA
Hyperinsulinism
Metabolic alkalosis
Diuretic therapy
Chloride
Prolonged diarrhea
Renal tubular disease
Hyperparathyroidism
Dehydration
Prolonged vomiting
Burns
Salt-losing renal disease
Overhydration
Thiazide therapy
Ionized
Calcium
Dehydration
Hyperparathyroidism
Malignancies
Immobilization
Thiazide diuretics
Vitamin D intoxication
Hypoparathyroidism
Early neonatal hypocalcemia
Chronic renal disease
Pancreatitis
Massive blood transfusions
Severe malnutrition
BUN
Impaired renal function
Prerenal azotemia (e.g. shock)
Postrenal azotemia
GI bleeding
High protein diet
Pregnancy
Severe liver insufficiency
Overhydration
Malnutrition
Glucose
Diabetes mellitus
Pancreatitis
Endocrine disorders (e.g. Cushing’s syndrome)
Drugs (e.g. steroids, thyrotoxicosis)
Chronic renal failure
Stress
IV glucose infusion
Insulinoma
Adrenocortical insufficiency
Hypopituitarism/Massive liver
disease
Ethanol ingestion/Reactive
hypoglycemia
Glycogen storage disease