Pounds to kilograms conversion

serum/plasma chemistry

HEADING:CEREBROSPINAL FLUID CHEMISTRY

On CSF obtained by cisternal puncture: About 25 mg/dL

On CSF obtained by ventricular puncture: About 10 mg/dL

Note: Bloody specimen gives erroneously high value due to contamination with

blood proteins

URINE (24-hour specimen is required for all these tests unless specified)

Amylase 32-641 units/L The value is in units/L and not calculated for total

volume.

Amylase, fluid (random samples) Interpretation of value left for

physician, depends on the nature of fluid.

Calcium Depends upon dietary intake

Creatine

male 150 mg/24 h Higher value on children and during pregnancy.

female 250 mg/24 h

Creatinine 1000-2000 mg/24 h

Creatinine clearance (endogenous)

male female 85-125 mL/min 75-115 mL/min A blood sample must accompany

urine specimen.

Glucose 1 g/24 h

5-hydroxyindoleacetic acid 2-8 mg/24 h

Iron 0.15 mg/24 h Acid washed container required.

Magnesium 146-209 mg/24 h

Osmolality 500-800 mOsm/kg With normal fluid intake.

Oxalate 10-40 mg/24 h

Phosphate 400-1300 mg/24 h

Potassium 25-120 mEq/24 h Varies with diet; the interpretation of urine

electrolytes and osmolality should be left for the physician.

Sodium 40-220 mEq/24 h

Porphobilinogen, qualitative Negative

Porphyrins, qualitative Negative

Proteins 0.05-0.1 g/24 h

Salicylate Negative

Urea clearance 60-95 mL/min A blood sample must accompany specimen.

Urea N 10-40 g/24 h Dependent on protein intake.

Uric acid 250-750 mg/24 h Dependent on diet and therapy.

Urobilinogen 0.5-3.5 mg/24 h For qualitative determination on random urine,

send sample to urinalysis section in Hematology Lab.

Xylose absorption test

children 16%-33% of ingested xylose

FECES

Fat, 3-day collection <5 g/d Value depends on fat intake of 100 g/d for 3

days preceding and during collection.

GASTRIC ACIDITY

Acidity, total, 12 h 10-60 mEq/L Titrated at pH 7.

Blood Gases

Arterial Capillary Venous

pH 7.35-7.45 7.35-7.45 7.32-7.42

pCO2 (mm Hg) 35-45 35-45 38-52

pO2 (mm Hg) 70-100 60-80 24-48

HCO3 (mEq/L) 19-25 19-25 19-25

TCO2 (mEq/L) 19-29 19-29 23-33

O2 saturation (%) 90-95 90-95 40-70

Base excess (mEq/L) -5 to +5 -5 to +5 -5 to +5

HEMATOLOGY Complete Blood Count

Age Hgb (g/dL) Hct (%) RBC (mill/mm3) RDW

0-3 d 15.0-20.0 45-61 4.0-5.9 <18

1-2 wk 12.5-18.5 39-57 3.6-5.5 <17

1-6 mo 10.0-13.0 29-42 3.1-4.3 <16.5

7 mo to 2 y 10.5-13.0 33-38 3.7-4.9 <16

2-5 y 11.5-13.0 34-39 3.9-5.0 <15

5-8 y 11.5-14.5 35-42 4.0-4.9 <15

13-18 y 12.0-15.2 36-47 4.5-5.1 <14.5

Adult male 13.5-16.5 41-50 4.5-5.5 <14.5

Adult female 12.0-15.0 36-44 4.0-4.9 <14.5

Age MCV (fL) MCH (pg) MCHC (%) Plts (x 103/mm3)

0-3 d 95-115 31-37 29-37 250-450

1-2 wk 86-110 28-36 28-38 250-450

1-6 mo 74-96 25-35 30-36 300-700

7 mo to 2 y 70-84 23-30 31-37 250-600

2-5 y 75-87 24-30 31-37 250-550

5-8 y 77-95 25-33 31-37 250-550

13-18 y 78-96 25-35 31-37 150-450

Adult male 80-100 26-34 31-37 150-450

Adult female 80-100 26-34 31-37 150-450

WBC and Differential

Age WBC (x 103/mm3) Segs Bands Lymphs Monos

0-3 d 9.0-35.0 32-62 10-18 19-29 5-7

1-2 wk 5.0-20.0 14-34 6-14 36-45 6-10

1-6 mo 6.0-17.5 13-33 4-12 41-71 4-7

7 mo to 2 y 6.0-17.0 15-35 5-11 45-76 3-6

2-5 y 5.5-15.5 23-45 5-11 35-65 3-6

5-8 y 5.0-14.5 32-54 5-11 28-48 3-6

13-18 y 4.5-13.0 34-64 5-11 25-45 3-6

Adults 4.5-11.0 35-66 5-11 24-44 3-6

Age Eosinophils Basophils Atypical Lymphs No. of NRBCs

0-3 d 0-2 0-1 0-8 0-2

1-2 wk 0-2 0-1 0-8 0

1-6 mo 0-3 0-1 0-8 0

7 mo to 2 y 0-3 0-1 0-8 0

2-5 y 0-3 0-1 0-8 0

5-8 y 0-3 0-1 0-8 0

13-18 y 0-3 0-1 0-8 0

Adults 0-3 0-1 0-8 0

Segs = segmented neutrophils.

Bands = band neutrophils.

Lymphs = lymphocytes.

Monos = monocytes.

Erythrocyte Sedimentation Rates and Reticulocyte Counts

Sedimentation rate, Westergren Children 0-20 mm/hour

Adult male 0-15 mm/hour

Adult female 0-20 mm/hour

Sedimentation rate, Wintrobe Children 0-13 mm/hour

Adult male 0-10 mm/hour

Adult female 0-15 mm/hour

Reticulocyte count Newborns 2%-6%

1-6 mo 0%-2.8%

Adults 0.5%-1.5%

Table Conversion

1 pound = 0.45359 kilograms
1 kilogram = 2.2 pounds