Urine Tests Requiring no Preservatives

Test name is listed with preferred specimen (timed or random collection)

Amino Acids, random Microalbumin, 24 hr or random
Aminolevulinic Acid, Quantitative, 24 hr N-Methylhistamine, 24 hr
Amylase, random N-Telopeptide, Cross-Linked, 24 hr
BK Virus DNA, Quantitative, by Rapid PCR, random Neuroblastoma Screen, random
Calcium, 24 hr preferred; random, if necessary Organic Acids, random
Chloride, 24 hr or random Orotic Acid, random or timed
Creatinine, 24 hr or random Osmolality, random
Creatinine Clearance, 24 hr Porphobilinogen, Qualitative, random
Cystine, Quantitative, random Potassium, 24 hr or random
D-Xylose Absorption Test (Adults and Pediatrics, 5 hour only Pregnancy Test, 1st void or random (preferred)
Ethanol, random Protein Electrophoresis, 24 hr or random
Glucose, Quantitative, 24 hr or random Protein, Quantitative, 24 hr or random
Hemosiderin, random Sodium, 24 hr or random
Homocystine, Quantitative, 24 hr or random Urea Nitrogen, 24 hr or random
Immunofixation Electrophoresis, random Uric Acid, 24 hr preferred random, if necessary
Inorganic Phosphorus (Phosphate), random Urinalysis, Routine Screen or with Microscopy
Lysozyme, random Urine Cytology, random
Magnesium, 24 hr preferred random, if necessary Xanthine and Hypoxanthine, 24 hr