USMLE Blood Lab Values

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USMLE Blood Lab Values:

BLOOD, PLASMA, SERUM REFERENCE RANGE SI REFERENCE INTERVALS
Alanine aminotransferase (ALT, GPT at 30 C) 8-20 U/L 8-20 U/L
Amylase, serum 25-125 U/L 25-125 U/L
Aspartate aminotransferase (AST, GOT at 30 C) 8-20 U/L 8-20 U/L
Bilirubin, serum (adult) Total // Direct 0.1-1.0 mg/dL // 0.0-0.3 mg/dL 2-17 µmol/L // 0-5 µmol/L
Calcium, serum (Ca2+) 8.4-10.2 mg/dL 2.1-2.8 mmol/L
Cholesterol, serum Rec:<200 mg/dL <5.2 mmol/L
Cortisol, serum 0800 h: 5-23 µg/dL // 1600 h: 3-15 µg/dL 138-635 nmol/L // 82-413 nmol/L
  2000 h: < 50% of 0800 h Fraction of 0800 h: < 0.50
Creatine kinase, serum Male: 25-90 U/L 25-90 U/L
  Female: 10-70 U/L 10-70 U/L
Creatinine, serum 0.6-1.2 mg/dL 53-106 µmol/L
Electrolytes, serum    
Sodium (Na+) 136-145 mEq/L 136-145 mmol/L
Chloride (Cl-) 95-105 mEq/L 95-105 mmol/L
Potassium (K+) 3.5-5.0 mEq/L 3.5-5.0 mmol/L
Bicarbonate (HCO3-) 22-28 mEq/L 22-28 mmol/L
Magnesium (Mg2+) 1.5-2.0 mEq/L 1.5-2.0 mmol/L
Estriol, total, serum (in pregnancy)    
24-28 wks // 32-36 wks 30-170 ng/mL // 60-280 ng/mL 104-590 // 208-970 nmol/L
28-32 wks // 36-40 wks 40-220 ng/mL // 80-350 ng/mL 140-760 // 280-1210 nmol/L
Ferritin, serum Male: 15-200 ng/mL 15-200 µg/L
  Female: 12-150 ng/mL 12-150 µg/L
Follicle-stimulating hormone, serum/plasma Male: 4-25 mIU/mL 4-25 U/L
  Female: premenopause 4-30 mIU/mL 4-30 U/L
  midcycle peak 10-90 mIU/mL 10-90 U/L
  postmenopause 40-250 mIU/mL 40-250 U/L
Gases, arterial blood (room air)    
pH 7.35-7.45 [H+] 36-44 nmol/L
PCO2 33-45 mm Hg 4.4-5.9 kPa
PO2 75-105 mm Hg 10.0-14.0 kPa
Glucose, serum Fasting: 70-110 mg/dL 3.8-6.1 mmol/L
  2-h postprandial: < 120 mg/dL < 6.6 mmol/L
Growth hormone - arginine stimulation Fasting: < 5 ng/mL < 5 µg/L
  provocative stimuli: > 7 ng/mL > 7 µg/L
Immunoglobulins, serum    
IgA 76-390 mg/dL 0.76-3.90 g/L
IgE 0-380 IU/mL 0-380 kIU/L
IgG 650-1500 mg/dL 6.5-15 g/L
IgM 40-345 mg/dL 0.4-3.45 g/L
Iron 50-170 µg/dL 9-30 µmol/L
Lactate dehydrogenase, serum 45-90 U/L 45-90 U/L
Luteinizing hormone, serum/plasma Male: 6-23 mIU/mL 6-23 U/L
  Female: follicular phase 5-30 mIU/mL 5-30 U/L
  midcycle 75-150 mIU/mL 75-150 U/L
  postmenopause 30-200 mIU/mL 30-200 U/L
Osmolality, serum 275-295 mOsmol/kg 275-295 mOsmol/kg
Parathyroid hormone, serum, N-terminal 230-630 pg/mL 230-630 ng/L
Phosphatase (alkaline), serum (p-NPP at 30 C) 20-70 U/L 20-70 U/L
Phosphorus (inorganic), serum 3.0-4.5 mg/dL 1.0-1.5 mmol/L
Prolactin, serum (hPRL) < 20 ng/mL < 20 µg/L
Proteins, serum    
Total (recumbent) 6.0-7.8 g/dL 60-78 g/L
Albumin 3.5-5.5 g/dL 35-55 g/L
Globulin 2.3-3.5 g/dL 23-35 g/L
Thyroid-stimulating hormone, serum or plasma 0.5-5.0 µU/mL 0.5-5.0 mU/L
Thyroidal iodine (123I) uptake 8-30% of administered dose/24 h 0.08-0.30/24 h
Thyroxine (T4), serum 5-12 µg/dL 64-155 nmol/L
Triglycerides, serum 35-160 mg/dL 0.4-1.81 mmol/L
Triiodothyronine (T3), serum (RIA) 115-190 ng/dL 1.8-2.9 nmol/L
Triiodothyronine (T3) resin uptake 25-35% 0.25-0.35
Urea nitrogen, serum (BUN) 7-18 mg/dL 1.2-3.0 mmol urea/L
Uric acid, serum 3.0-8.2 mg/dL 0.18-0.48 mmol/L

Additional Reading:

Random USMLE Facts

1. Random USMLE Facts volume 1-1
2. Random USMLE Facts volume 2-1
3. Random USMLE Facts volume 3-1
4. Random USMLE Facts volume 4-1
5. Random USMLE Facts volume 5-1
6. Random USMLE Facts volume 6-1
7. Random USMLE Facts volume 7-1
8. Random USMLE Facts volume 8-1
9. Random USMLE Facts volume 9-1
10. Random USMLE Facts volume 10-1
11. Random USMLE Facts volume 11-1
12. Random USMLE Facts volume 12-1

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6. Video of HEENT Examination in a Clinical Setting
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8. Video and Description of Weber Hearing Test

USMLE Laboratory (lab) Values

1. USMLE Blood Lab Values
2. USMLE Cerebrospinal Lab Values
3. USMLE Hematologic Lab Values
4. USMLE Sweat and Urine Lab Values

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