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Urine Tests: Normal Values

by Frank H. Wians, Jr., PhD

Normal Laboratory Values: Urine

Test

Specimen

Conventional Units

SI Units

Aldosterone

Urine, 24 h

5–19 μg/24 h

13.9–52.6 nmol/24 h

Amino acids, total

Urine, 24 h

200–400 mg/24 h

14–29 nmol/24 h

Amylase

Urine, timed

6.5–48.1 U/h

Calcium, with patients on an unrestricted diet

Urine, timed

100–300 mg/day

2.5–7.5 mmol/day

Catecholamines, total

Urine, 24 h

< 100 μg/m 2 /24 h

< 591 nmol/m 2 /24 h

Chloride

Urine, timed

80–250 mEq/day

80–250 mmol/day

Copper

Urine, 24 h

0–100 μg/24 h

0–1.6 μmol/24 h

Coproporphyrin

Urine, 24 h

50–250 μg/24 h

76–382 nmol/24 h

Cortisol, free

Urine, 24 h

< 90 μg/24 h

< 248 nmol/24 h

Creatine:

Females

Urine, 24 h

0–100 mg/24 h

0–763 mmol/24 h

Males

Urine, 24 h

4–40 mg/24 h

30–305 mmol/24 h

Creatinine, weight-based

Urine, 24 h

15–25 mg/kg/24 h

133–221 mmol/kg/ 24 h

d -Xylose excretion 5 h after ingestion of 25 g of d -xylose

Urine, 5 h collection

5–8 g

33–53 mmol

Estriol, females

Urine, 24 h

> 12 mg/24 h

> 42 μmol/24 h

17-Hydroxycorticosteroids, fractionated, adults ≥ 18 yr:

Cortisol

Urine, 24 h

3.5–4.5 μg/24 h

9.7–12.4 nmol/24 h

Cortisone

Urine, 24 h

17–129 μg/24 h

47–359 nmol/24 h

5-Hydroxyindoleacetic acid (5-HIAA)

Urine, 24 h

2–9 mg/24 h

10.4–46.8 μmol/24 h

17-Ketosteroid, fractionated, females > 12 yr:

Androsterone

Urine, 24 h

55–1589 μg/24 h

Pregnanetriol

Urine, 24 h

59–1391 μg/24 h

17-Ketosteroid, fractionated, males > 12 yr:

Androsterone

Urine, 24 h

234–2703 μg/24 h

Etiocholanolone

Urine, 24 h

151–3198 μg/24 h

11-Hydroxyandrosterone

Urine, 24 h

66–1032 μg/24 h

11-Hydroxyetiocholanolone

Urine, 24 h

17–1006 μg/24 h

11-Ketoandrosterone

Urine, 24 h

4–55 μg/24 h

11-Ketoetiocholanolone

Urine, 24 h

51–1016 μg/24 h

Pregnanetriol

Urine, 24 h

245–1701 μg/24 h

Metanephrines, fractionated, normotensive patients ≥ 18 yr:

Females, metanephrine

Urine, 24 h

30–180 μg/24 h

Females, total metanephrines

Urine, 24 h

142–510 μg/24 h

Males, metanephrine

Urine, 24 h

44–261 μg/24 h

Males, total metanephrines

Urine, 24 h

190–583 μg/24 h

Metanephrines, fractionated, normotensive males and females aged 18–29 yr:

Normetanephrine

Urine, 24 h

103–390 μg/24 h

Metanephrines, fractionated, hypertensive males and females:

Metanephrine

Urine, 24 h

< 400 μg/24 h

Normetanephrine

Urine, 24 h

< 900 μg/24 h

Total metanephrines

Urine, 24 h

< 1300 μg/24 h

Microalbumin

Urine, 24 h

< 30 mg/24 h

Microalbumin, albumin/ creatinine ratio

Urine, random

< 20 μg/mg

Osmolality

Urine, random

38–1400 mOsm/kg H 2 O

Oxalate

Urine, 24 h

0.11–0.46 mmol/ specimen*

Phosphate, tubular reabsorption

Urine, random

79–94% of filtered load

Porphobilinogens

Urine, random

0–0.5 mg/g creatinine

Potassium

Urine, 24 h

25–100 mEq/24 h

25–100 mmol/24 h

Protein, total

Urine, 24 h

< 100 mg/24 h

Sodium

Urine, 24 h

100–260 mEq/24 h

100–260 mmol/24 h

Uric acid

Urine, 24 h

250–750 mg/24 h

1.48–4.43 mmol/24 h

Urinalysis, routine

pH

Urine, random

5–7

Urinalysis, routine, dipstick testing :

Bilirubin

Urine, random

Negative

Blood

Urine, random

Negative

Glucose

Urine, random

Negative

Ketones

Urine, random

Negative

Leukocyte esterase

Urine, random

Negative

Nitrites

Urine, random

Negative

Protein

Urine, random

Negative

Urobilinogen

Urine, random

0.2–1.0 EU

Urobilinogen

Urine, 24 h

0.05–2.5 mg/24 h

0.08–4.22 μmol/24 h

Vanillylmandelic acid (VMA)

Urine, 24 h

< 8 mg/24 h

< 40.4 mol/24 h

*Value is based on 24-h collection.

Normal findings detected by microscopic examination can include a few RBCs (especially in menstruating women), WBCs, epithelial cells, bacteria, yeast cells, crystals (eg, Ca oxalate, triple phosphate, amorphous phosphates and urates), sperm, and unidentifiable materials. Large amounts of these substances or the presence of certain other materials may be abnormal.

EU = Ehrlich units.

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