II. Interpretation: Normal
III. Technique
- First morning void collected
- Orthostatic Proteinuria (benign, common cause in male teens) may be seen with later samples in the day
- Detection Method
- Initial: Dipstick Urine Protein
- High Test Sensitivity and Test Specificity (>99%) for albumin, but not for other Proteins
- Confirmation
- Initial: Dipstick Urine Protein
- Dipstick turns from yellow to green for Protein present (Tetrabromophenol blue colorimetric method)
IV. Causes: Increased Urine Protein
V. Causes: False Positive Urine Protein
- Alkaline urine (Urine pH >8)
- Increased Urine Specific Gravity (concentrated, Urine Specific Gravity >1.030)
- Dipstick immersed too long in urine (or placed directly in urine stream)
- Non-albumin Proteins
- Medications
- Penicillin
- Sulfonamide
- Tolbutamide
- Phenazopyridine (Pyridium)
- Chlorhexidine contamination (Hibiclens, Peridex)
- Iodinated radiocontrast in urine
- Benzalkonium
- Quaternary Ammonium Compounds (QAC, Quaternary Amines) found in disinfectants (Quats)
- Body fluid contamination
- Gross Hematuria present
- Bacteriuria
- Pus
- Semen
- Vaginal secretions
VI. Causes: False Negative Urine Protein
- Albumin is not the primary Protein
- Light chain Protein (detected by Sulfosalicylic acid)
- Dilute urine (Urine Specific Gravity <1.010)
- Urine Protein concentration <10 mg per deciliter
- Urine pH decreased (pH <4.5)
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Related Studies
Concepts | Laboratory Procedure (T059) |
SnomedCT | 167453009 |
Italian | Albumina nelle urine |
Japanese | 尿中アルブミン, ニョウチュウアルブミン |
English | Urine albumin tests, Albumin urine, albumin urine test, urine test albumin, albumin urine, Urine albumin, Albumin - urine, urine albumin (lab test), urine albumin, Urine Albumin Test, urine albumin test, Test;urine;albumin |
Czech | Albumin v moči |
Hungarian | Albumin vizeletben |
Portuguese | Albumina na urina |
Spanish | Albúmina en orina |
Dutch | albumine urine |
French | Albumine urinaire |
German | Albumin im Urin |
Ontology: Urine protein test (C0262923)
Definition (NCI) | The determination of the amount of protein present in a urine sample. |
Concepts | Laboratory Procedure (T059) |
SnomedCT | 167284009, 144520004, 148462000, 144674004, 167449007, 167456001, 144681006, 144507002, 57378007, 167271000, 171247004 |
English | Urine protein NOS, Urine protein test NOS, Urine screen for protein, Protein urine, Urine Protein Measurement, protein urine test, urine protein level test, Urine protein test NOS (procedure), Urine protein (& level), Protein - urine, Urine protein (& level) (procedure), Urine protein NOS (procedure), urine protein, urine protein test (lab test), urine protein test, Urine Protein Test, Protein measurement, urine, Urine protein, Urine protein level, Protein measurement, urine (procedure), Urine protein test (procedure), Urine screening for protein (procedure), Urine screening for protein, Urine protein test |
Italian | Proteine nelle urine |
Japanese | 尿蛋白, ニョウタンパク |
Spanish | rastreo mediante la detección de proteinuria, pesquisa de proteinuria, detección selectiva de proteinuria (procedimiento), cribado mediante la detección de proteinuria, detección selectiva de proteinuria, cribado de proteinuria, cribado mediante la detección de proteinuria (procedimiento), screening mediante la detección de proteinuria, screening de proteinuria, tamizaje mediante la detección de proteinuria, cribaje mediante la detección de proteinuria, tamizaje de proteinuria, pesquisa mediante la detección de proteinuria, cribado mediante la detección de proteinas en orina, cribado mediante la detección de proteínas en orina, determinación de proteinuria, SAI, prueba de proteinuria, SAI, prueba de proteinuria, SAI (procedimiento), Urine protein NOS, Urine protein test NOS, determinación de proteinuria, SAI (procedimiento), medición de proteína en orina (procedimiento), medición de proteína en orina, prueba de proteinuria (procedimiento), prueba de proteinuria, Proteínas en orina |
Czech | Bílkovina v moči |
Hungarian | Fehérje vizeletben |
Portuguese | Proteína na urina |
Dutch | eiwit urine |
French | Protéine urinaire |
German | Protein im Urin |
Ontology: Urine dipstick for protein (C0430371)
Concepts | Laboratory Procedure (T059) |
SnomedCT | 167280000, 144516003, 271346009 |
English | Urine dipstick for protein (situation), Urine dipstick for protein, Urine dipstick for protein (procedure) |
Spanish | determinación de proteinuria con tira reactiva (procedimiento), determinación de proteinuria con tira reactiva |