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USMLE Lab Values Sweat, Urine

Medicine7 CardsCreated 4 months ago

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

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Key Terms

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...

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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TermDefinition

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
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 micro mol/24hr

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

17-ketosteroids, total, urine

Male: 8-20 mg/24hr, 28-70 micro mol/24hr
Female: 6-15 mg/24hr, 21-52 micro mol/24hr