USMLE Lab Values Sweat, Urine
This flashcard presents the normal reference range for sweat chloride levels (0–35 mM), a key diagnostic marker for cystic fibrosis. Elevated levels may indicate abnormal chloride transport due to CFTR gene mutations.
Chloride, sweat
0-35 mM
Key Terms
Chloride, sweat
0-35 mM
Calcium, urine
Sodium, Potassium, Chloride, Uric acid, urine
100-300 mg/24hr, 2.5-7.5mM
Vary with diet
Osmolality, urine
Proteins, total, urine
Oxalate, urine
50-1400 mOsmol/kgH2O
Less than 150 mg/24hr
8-40 microg...
Creatine clearance
Male: 97-137 mL/min
Female: 8m-128 mL/min
Estriol, total, in pregnancy, urine
30 wk: 6-18 mg/24hr, 21-62 micro mol/24hr
35 wk: 9-28 mg/24hr, 31-97 micro mol/24hr
40 wk: 13-42 mg/24hr, 45-146 m...
17-hydroxycorticosteroids, urine
Male: 3-10 mg/24hr, 8.2-27.6 micro mol/24hr
Female: 2-8 mg/24hr, 5.5-22 micro mol/24hr
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| Term | Definition |
|---|---|
Chloride, sweat | 0-35 mM |
Calcium, urine Sodium, Potassium, Chloride, Uric acid, urine | 100-300 mg/24hr, 2.5-7.5mM Vary with diet |
Osmolality, urine Proteins, total, urine Oxalate, urine | 50-1400 mOsmol/kgH2O Less than 150 mg/24hr 8-40 microg/mL, 90-445 microM |
Creatine clearance | Male: 97-137 mL/min |
Estriol, total, in pregnancy, urine | 30 wk: 6-18 mg/24hr, 21-62 micro mol/24hr |
17-hydroxycorticosteroids, urine | Male: 3-10 mg/24hr, 8.2-27.6 micro mol/24hr |
17-ketosteroids, total, urine | Male: 8-20 mg/24hr, 28-70 micro mol/24hr |