Comprehensive Guide to Normal Lab Values for Medical Students

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64 Terms

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Osmolality

275 - 295 mOsm/kg

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Na+

135 -145 mEq/L

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Ca+

8.5 - 10.5 mg/dl

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K+

3.5 - 5 mEq/L

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Cl-

95 - 105 mEq/L

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Phos

2.5 - 4.5 mg/dL

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Mg

1.4 - 1.8 mEq/dL

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Anion Gap

Na - (Cl + HCO3) (normal 10 - mEq)

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pH (blood)

7.35 - 7.45

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pH (urine)

4.5 - 8

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PaCO2 (arterial)

35 - 45 mmHg

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Bicarbonate (arterial)

24 - 30 mEq/L

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PaO2 (arterial)

80 -100 mm Hg

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O2 Sat (arterial)

95 - 100%

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Albumin

3.5 - 6 g/dl

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Glucose (fasting)

< 70 - 99 mg/dl

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Glucose

70 - 110 mg/dl

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A1c (normal)

< 7%

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A1c (prediabetes)

5.7% - 6.4%

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A1c (diabetes)

> 7%

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C-Peptide

0.78 - 1.89 ng/ml

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Cholesterol (Total)

< 200 mg/dl

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Triglycerides

< 150 mg/dl

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HDL

> 60 mg/dl, < 40 mg/dl (low)

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LDL

< 100 mg/dl

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Creatinine

0.6 - 1.2 mg/dl

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Creatinine clearance

107-139 mL/min

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Glomerular Filtration Rate (GFR)

90 - 120 ml/min

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Aspartate aminotransferase (AST)

0 - 35 units/L

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Alanine aminotransferase (ALT)

0 - 35 units/L

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Erythrocyte (RBC count male)

4.3 - 5.9 million/mm3

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Erythrocyte (RBC count female)

3.5 - 5 million/mm3

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Reticulocyte count

0.5 - 1.5 % (% of RBC)

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Hematocrit (female)

33-43%

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Hematocrit (male)

39 - 49%

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Leukocyte (WBC count)

32,00 - 11,300/ mm3

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Platelet count

150,000-450,000/mm3

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Hemoglobin (male)

14-18 g/dL

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Hemoglobin (female)

12 - 16 g/dl

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Prothrombin time (PT)

10-13 sec.

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Activated Partial Thromboplastin Time (APTT)

20-35 sec.

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INR

0.9 - 1.1

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Normal heart rate

60 -100 beats/minute

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Respiration rate

12- 20 breaths/minute

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Normal blood pressure

90 - 120/60 - 80

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Blood alcohol content (BAC)

80 mg/dl (0.08%)

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C-reactive protein (CRP)

0 - 0.5 mg/dL

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Erythrocyte sedimentation rate (ESR) men <50

<15 mm/hr

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Erythrocyte sedimentation rate (ESR) men >50

<20 mm/hr

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Erythrocyte sedimentation rate (ESR) women <50

<20 mm/hr

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Erythrocyte sedimentation rate (ESR) women >50

<30 mm/hr

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CPK-MB

<3.5% of total CK

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CPK, CK (males)

55-170 IU/L

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CPK, CK (females)

30-135 IU/L

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Lactic dehydrogenase

110 - 220 unit/L

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Troponin T (TnT)

0 - 0.1 ng/ml

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Troponin I (TnI)

0 - 0.5 ng/ml

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MCV (male)

80 - 96 fL

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MCV (female)

82 - 98 fL

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MCH

27 - 33 pg/cell

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MCHC

33.4 - 35.4 g/dL

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Thyroid Stimulating Hormone (TSH)

0.3 - 3 mIU/L

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Total thyroxine (T4)

0.9 - 2.3 ng/dL

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Free thyroxine (T3)

0.9 - 2.3 ng/dL