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USMLE Lab Values
| Question | Answer |
|---|---|
| Serum: Alanine aminotransferase (ALT) | 8-20 U/L |
| Serum: Amylase | 25-125 U/L |
| Serum: Aspartate aminotransferase (AST) | 8-20 U/L |
| Serum: Bilirubin Total // Direct | 0.1-1.0 mg/dL // 0.0-0.3 mg/dL |
| Serum: Calcium (Ca2+) | 8.4-10.2 mg/dL |
| Serum: Cholesterol | Rec:<200 mg/dL |
| Serum: Cortisol 0800 h: | 5-23 μg/dL |
| Serum: Cortisol 1600 h: | 3-15 μg/dL |
| Serum: Cortisol 2000 h: | < 50% of 0800 h |
| Serum: Creatine kinase, Male | 25-90 U/L |
| Serum: Creatine kinase, Female | 10-70 U/L |
| Serum: Creatinine | 0.6-1.2 mg/dL |
| Serum: Sodium (Na+) | 136-145 mEq/L |
| Serum: Potassium (K+) | 3.5-5.0 mEq/L |
| Serum: Chloride (Cl–) | 95-105 mEq/L |
| Serum: Bicarbonate (HCO3–) | 22-28 mEq/L |
| Serum: Magnesium (Mg2+) | 1.5-2.0 mEq/L |
| Serum: Estriol, total (in pregnancy), 24-28 wks // 32-36 wks | 30-170 ng/mL // 60-280 ng/mL |
| Serum: Estriol, total (in pregnancy), 28-32 wks // 36-40 wks | 40-220 ng/mL // 80-350 ng/mL |
| Serum: Ferritin, Male | 15-200 ng/mL |
| Serum: Ferritin, Female | 12-150 ng/mL |
| Serum: Follicle-stimulating hormone | |
| Serum: Follicle-stimulating hormone, Male | 4-25 mIU/mL |
| Serum: Follicle-stimulating hormone, Female, Premenopause | 4-30 mIU/mL |
| Serum: Follicle-stimulating hormone, Female, Midcycle peak | 10-90 mIU/mL |
| Serum: Follicle-stimulating hormone, Female, Postmenopause | 40-250 mIU/mL |
| Arterial blood gas (room air): pH | 7.35-7.45 |
| Arterial blood gas (room air): PCO2 | 33-45 mm Hg |
| Arterial blood gas (room air): PO2 | 75-105 mm Hg |
| Serum: Glucose, Fasting | 70-110 mg/dL |
| Serum: Glucose, 2-h postprandial | < 120 mg/dL |
| Growth hormone - arginine stimulation, fasting | < 5 ng/mL |
| Growth hormone - arginine stimulation, provocative stimuli | > 7 ng/mL |
| Serum: IgA | 76-390 mg/dL |
| Serum: IgE | 0-380 IU/mL |
| Serum: IgG | 650-1500 mg/dL |
| Serum: IgM | 40-345 mg/dL |
| Serum: Iron | 50-170 μg/dL |
| Serum: Lactate dehydrogenase (LDH) | 45-90 U/L |
| Serum: Luteinizing hormone, | |
| Serum: Luteinizing hormone, Male | 6-23 mIU/mL |
| Serum: Luteinizing hormone, Female, Follicular phase | 5-30 mIU/mL |
| Serum: Luteinizing hormone, Female, Midcycle | 75-150 mIU/mL |
| Serum: Luteinizing hormone, Female, Postmenopause | 30-200 mIU/mL |
| Serum: Osmolality | 275-295 mOsmol/kg H2O |
| Serum: Parathyroid hormone, N-terminal | 230-630 pg/mL |
| Serum: Phosphatase (alkaline), (p-NPP at 30C) | 20-70 U/L |
| Serum: Phosphorus (inorganic) | 3.0-4.5 mg/dL |
| Serum: Prolactin (hPRL) | < 20 ng/mL |
| Serum: Proteins, Total (recumbent) | 6.0-7.8 g/dL |
| Serum: Proteins, Albumin | 3.5-5.5 g/dL |
| Serum: Proteins, Globulin | 2.3-3.5 g/dL |
| Serum: Thyroid-stimulating hormone | 0.5-5.0 μU/mL |
| Thyroidal iodine (123I) uptake | 8%-30% of administered dose/24 h |
| Serum: Thyroxine (T4) | 5-12 μg/dL |
| Serum: Triglycerides | 35-160 mg/dL |
| Serum: Triiodothyronine (T3) (RIA) | 115-190 ng/dL |
| Serum: Triiodothyronine (T3) resin | 25%-35% |
| Serum: Urea nitrogen | 7-18 mg/dL |
| Serum: Uric acid | 3.0-8.2 mg/dL |
| Body mass index, adults | 19-25 kg/m2 |
| CSF: Cell count | 0-5/mm3 |
| CSF: Chloride | 118-132 mEq/L |
| CSF: Gamma globulin | 3%-12% total proteins |
| CSF: Glucose | 40-70 mg/dL |
| CSF: Pressure | 70-180 mm H2O |
| CSF: Proteins, total | <40 mg/dL |
| Bleeding time (template) | 2-7 minutes |
| Erythrocyte count, Male | 4.3-5.9 million/mm3 |
| Erythrocyte count, Female | |
| Erythrocyte sedimentation rate (Westergren) | 3.5-5.5 million/mm3 |
| Erythrocyte sedimentation rate (Westergren), Male | 0-15 mm/h |
| Erythrocyte sedimentation rate (Westergren), Female | 0-20 mm/h |
| Hematocrit, Male | 41%-53% |
| Hematocrit, Female | 36%-46% |
| Hemoglobin A1c | < 6% |
| Hemoglobin, Male | 13.5-17.5 g/dL |
| Hemoglobin, Female | 12.0-16.0 g/dL |
| Hemoglobin, plasma | 1-4 mg/dL |
| Leukocyte count | 4500-11,000/mm3 |
| Segmented neutrophils | 54%-62% |
| Bands | 3%-5% |
| Eosinophils | 1%-3% |
| Basophils | 0%-0.75% |
| Lymphocytes | 25%-33% |
| Monocytes | 3%-7% |
| Mean corpuscular hemoglobin | 25.4-34.6 pg/cell |
| Mean corpuscular hemoglobin concentration | 31%-36% Hb/cell |
| Mean corpuscular volume | 80-100 μm3 |
| Partial thromboplastin time (activated) | 25-40 seconds |
| Platelet count | 150,000-400,000/mm3 |
| Prothrombin time | 11-15 seconds |
| Reticulocyte count | 0.5%-1.5% |
| Thrombin time | <2 seconds deviation from control |
| Plasma volume, Male | 25-43 mL/kg |
| Plasma volume, Female | 28-45 mL/kg |
| Red cell volume, Male | 20-36 mL/kg |
| Red cell volume, Female | 19-31 mL/kg |
| Sweat: Chloride | 0-35 mmol/L |
| Urine: Calcium | 100-300 mg/24 h |
| Urine: Chloride | Varies with intake |
| Urine: Creatinine clearance, Male | 97-137 mL/min |
| Urine: Creatinine clearance, Female | 88-128 mL/min |
| Urine: Estriol, total (in pregnancy) 30 wks | 6-18 mg/24 h |
| Urine: Estriol, total (in pregnancy) 35 wks | 9-28 mg/24 h |
| Urine: Estriol, total (in pregnancy) 40 wks | 13-42 mg/24 h |
| Urine: 17-Hydroxycorticosteroids, Male | 3.0-10.0 mg/24 h |
| Urine: 17-Hydroxycorticosteroids, Female | 2.0-8.0 mg/24 h |
| Urine: 17-Ketosteroids, total, Male | 8-20 mg/24 h |
| Urine: 17-Ketosteroids, total, Female | 6-15 mg/24 h |
| Urine: Osmolality | 50-1400 mOsmol/kg H2O |
| Urine: Oxalate | 8-40 μg/mL |
| Urine: Potassium | Varies with diet |
| Urine: Proteins, total | <150 mg/24 h |
| Urine: Sodium | Varies with diet |
| Urine: Uric acid | Varies with diet |
Created by:
megankirch
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