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Lab Values



                Lab value
                                         (Ref. Harrison 18th ed.)
            
1.   Hematology and Coagulation

Analyte
Specimen
SI Units
Conventional Units              Round-off

Differential blood count
                                  Relative counts:


·         Neutrophils

0.40–0.70
40–70%


·         Bands

0.0–0.05
0–5%


·         Lymphocytes

0.20–0.50
20–50%


·         Monocytes

0.04–0.08
4–8%


·         Eosinophils

0.0–0.6
0–6%


·         Basophils

0.0–0.02
0–2%


Absolute counts:





·         Neutrophils

1.42–6.34x109/L
1420–6340/mm3


·         Bands

0–0.45x109/L
0–450/mm3


·         Lymphocytes

0.71–4.53x109/L
710–4530/mm3


·         Monocytes

0.14–0.72x109/L
140–720/mm3


·         Eosinophils

0–0.54x109/L
0–540/mm3


·         Basophils WB

0–0.18x109/L
0–180/mm3


Erythrocyte count
WB




·         Adult males

4.30–5.60x1012/L
4.30–5.60x106/mm3


·         Adult females

4.00–5.20x1012/L
4.00–5.20x106/mm3


Erythrocyte life span
WB




·         Normal survival

120 days
120 days








Erythrocyte sedimentation rate
WB




·         Females

0–20 mm/h
0–20 mm/h


·         Males

0–15 mm/h
0–15 mm/h


Hematocrit
WB




·         Adult males

0.388–0.464
38.8–46.4


·         Adult females

0.354–0.444
35.4–44.4


Hemoglobin





·         Plasma
P
6–50 mg/L
0.6–5.0 mg/dL


·         Whole blood:
WB




·         Adult males

133–162 g/L
13.3–16.2 g/dL


·         Adult females

120–158 g/L
12.0–15.8 g/dL


          Leukocytes





·         Alkaline phosphatase (LAP)
WB
0.2–1.6 kat/L
13–100 /L


·         Count (WBC)


         Erythrocytes
WB
3.54–9.06x109/L
3.54–9.06x103/mm3


·         Mean corpuscular hemoglobin (MCH)
WB
26.7–31.9 pg/cell
27–32  pg/cell


·         Mean corpuscular hemoglobin concentration (MCHC)
WB
323–359 g/L
32–36 g/dL


·         Mean corpuscular hemoglobin of reticulocytes (CH)
WB
24–36 pg
24–36 pg


·         Mean corpuscular volume (MCV)
WB
79–93.3 fL
79–93 m3


·         Mean platelet volume (MPV)
WB
9.00–12.95 fL
9.00–12.95



Partial thromboplastin time, activated(aPTT)

P

26.3–39.4 s

26.3–39.4 s


Platelet count
WB
165–415x109/L
150–400x10
^3/mm3


Prothrombin time(PT)
P
12.7–15.4 s
12.7–15.4 s


Red cell distribution width
WB
<0.145
<14.5%








Reticulocyte count
WB



·         Adult males

0.008–0.023 red cells
0.8–2.3% red cells



·         Adult females

0.008–0.020 red cells
0.8–2.0% red cells


Thrombin time
P
15.3–18.5 s
15.3–18.5 s










*(Abbreviations: P, plasma; RC, red cells; S, serum; WB, whole blood)

Table 2 Clinical Chemistry and Immunology
Analyte
Specimen*
SI Units
Conventional Units

Alanine aminotransferase (ALT, SGPT)
S
0.12–0.70 kat/L
7–41 U/L

Albumin
S
40–50 g/L
4.0–5.0 mg/dL

Anion gap
S
7–16 mmol/L
7–16 mmol/L

Arterial blood gases
·         [HCO3–]
·         PCO2
·         pH
·         PO2
WB

22–30 mmol/L
4.3–6.0 kPa
7.35–7.45
9.6–13.8 kPa

22–30 meq/L
32–45 mmHg
7.35–7.45
72–104 mmHg





Aspartate aminotransferase (AST, SGOT)
S
0.20–0.65 kat/L
12–38 U/L

Bilirubin
·         Total
·         Direct
·         Indirect
S

5.1–22 mol/L
1.7–6.8 mol/L
3.4–15.2 mol/L

0.3–1.3 mg/dL
0.1–0.4 mg/dL
0.2–0.9 mg/dL




Calcium
S
2.2–2.6 mmol/L
8.7–10.2 mg/dL

Calcium, ionized
WB
1.12–1.32 mmol/L
4.5–5.3 mg/dL

C-reactive protein
S
<10 mg/L
<10 mg/L

Creatinine
·         Female
·         Male
S

44–80 mol/L
53>106mol/L

0.5–0.9 mg/dL
0.6–1.2 mg/dL



Erythropoietin
S
4–27 U/L
4–27 U/L

Fatty acids, free (nonesterified)
P
0.1–0.6 mmol/L
2.8–16.8 mg/dL

Ferritin
·         Female
·         Male
S

10–150 g/L
29 248g/L

10–150 ng/mL
29–248 ng/mL



Glucose
·         Glucose (fasting)
·         Normal

·         Increased risk for diabetes
·         Diabetes mellitus
WB
P

3.6–5.3 mmol/L
4.2–5.6 mmol/L


5.6–6.9 mmol/L

Fasting >7.0 mmol/L
A 2-hour level of >11.1 mmol/L during an oral glucose tolerance test
A random glucose level of >11.1 mmol/L in patients with symptoms of hyperglycemia

65–95 mg/dL
75–100 mg/dL


100–125 mg/dL

Fasting >126 mg/dL
A 2-hour level of >200 mg/dL during an oral glucose tolerance test
A random glucose level of >200 mg/dL in patients with symptoms of hyperglycemia






Insulin
S, P
14.35–143.5 pmol/L
2–20 U/mL

Iron
S
7–25 mol/L
41–141 g/dL

·         Iron-binding capacity
S
45–73 mol/L
251–406 g/dL

·         Iron-binding capacity saturation
S
0.16–0.35
16–35%

Lactate dehydrogenase
S
2.0–3.8 kat/L
115–221 U/L

Oxygen saturation (sea level)
·         Arterial
·         Venous, arm
WB
Fraction:
0.94–1.0
0.60–0.85
Percent:
94–100%
60–85%



Phosphatase, alkaline
S
0.56–1.63 kat/L
33–96 U/L

Potassium
S
3.5–5.0 mmol/L
3.5–5.0 meq/L






Protein fractions:
1.        Albumin

2.        Globulin

3.        Alpha1

4.        Alpha2

5.        Beta

6.        Gamma
S

35–55 g/L

20–35 g/L

2–4 g/L

5–9 g/L

6–11 g/L

7–17 g/L

3.5–5.5 g/dL (50–60%)

2.0–3.5 g/dL (40–50%)

0.2–0.4 g/dL (4.2–7.2%)

0.5–0.9 g/dL (6.8–12%)

0.6–1.1 g/dL (9.3–15%)

0.7–1.7 g/dL (13–23%)












Protein, total
S
67–86 g/L
6.7–8.6 g/dL

Sodium
S
136–146 mmol/L
136–146 meq/L

       Thyroid-stimulating hormone
S
0.34–4.25 mIU/L
0.34–4.25 IU/mL

       Thyroxine, free (fT4)
S
9.0–16 pmol/L
0.7–1.24 ng/dL

       Thyroxine, total (T4)
S
70–151 nmol/L
5.4–11.7 g/dL

       Urea nitrogen
S
2.5–7.1 mmol/L
7–20 mg/dL

       Uric acid
·         Females
·         Males
S

0.15–0.33 mmol/L
0.18–0.41 mmol/L

2.5–5.6 mg/dL
3.1–7.0 mg/dL




















Table 5 Classification of LDL, Total, and HDL Cholesterol
LDL Cholesterol
<70 mg/dL
Therapeutic option for very high risk patients
<100 mg/dL
Optimal
100–129 mg/dL
Near optimal/above optimal
130–159 mg/dL
Borderline high
160–189 mg/dL
High
190 mg/dL
Very high
Total Cholesterol

<200 mg/dL
Desirable
200–239 mg/dL
Borderline high
240 mg/dL
High
HDL Cholesterol

<40 mg/dL
Low
60 mg/dL
High


                      Cerebrospinal Fluid

Reference Range

Constituent
SI Units
Conventional Units
Osmolarity
292–297 mmol/kg water
292–297 mOsm/L
Electrolytes


Sodium
137–145 mmol/L
137–145 meq/L
Potassium
2.7–3.9 mmol/L
2.7–3.9 meq/L






Chloride
116–122 mmol/L
116–122 meq/L






pH
7.31–7.34

Glucose
2.22–3.89 mmol/L
40–70 mg/dL
Lactate
1–2 mmol/L
10–20 mg/dL
Total protein:


Lumbar
0.15–0.5 g/L
15–50 mg/dL






Albumin
0.066–0.442 g/L
6.6–44.2 mg/dL


















CSF pressure

50–180 mmH2O
CSF volume (adult)
150 mL

Red blood cells
0
0
Leukocytes


Total
0–5 mononuclear cells per L

Differential


Lymphocytes
60–70%

Monocytes
30–50%

Neutrophils
None




    Urine Analysis and Renal Function Tests
Ammonia
30–50 mmol/d
30–50 meq/d

Creatinine
8.8–14 mmol/d
1.0–1.6 g/d

Glomerular filtration rate
>60 mL/min/1.73 m2
For African Americans multiply the result by 1.21
>60 mL/min/1.73 m2
For African Americans multiply the result by 1.21

Glucose (glucose oxidase method)
0.3–1.7 mmol/d
50–300 mg/d

Ketone (acetone)
Negative
Negative

Microalbumin
–Normal
–Microalbuminuria
–Clinical albuminuria

0.0–0.03 g/d
0.03–0.30 g/d
>0.3 g/d

0–30 mg/d
30–300 mg/d
>300 mg/d




Osmolality
500–800 mOsmol/kg water
500–800 mOsmol/kg water

pH
5.0–9.0
5.0–9.0

Phosphate (phosphorus) (varies with intake)
12.9–42.0 mmol/d
400–1300 mg/d

Potassium (varies with intake)
25–100 mmol/d
25–100 meq/d

Protein
<0.15 g/d
<150 mg/d

Sediment
–Red blood cells
–White blood cells
–Bacteria
–Crystals
–Bladder cells
–Squamous cells
–Tubular cells
–Broad casts
–Epithelial cell casts
–Granular casts
–Hyaline casts
–Red blood cell casts
–Waxy casts
–White cell casts


0–2/high-power field
0–2/high-power field
None
None
None
None
None
None
None
None
0–5/low-power field
None
None
None


Sodium (varies with intake)
100–260 mmol/d
100–260 meq/d

Urea nitrogen
214–607 mmol/d
6–17 g/d

Uric acid (normal diet)
1.49–4.76 mmol/d
250–800 mg/d


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