Temperature

SI unit  Conversion factor  Conventional unit 
°C (x 9/5) + 32  °F

Haematology

 

SI unit 

Conversion factor 

Conventional unit 

Red blood cell count 

1012/l

106/µl

Haemoglobin 

g/l

0.1 

g/dl

MCH 

pg/cell

pg/cell

MCHC 

g/l

0.1 

g/dl

MCV 

 fl

µm3

Platelet count 

109/l

103/ µl

White blood cell count 

109/l

103/ µl

Biochemistry

 

SI unit 

Conversion factor 

Conventional unit 

Alanine aminotransferase 

IU/l 

1

IU/l 

Albumin

g/l 

0.1

g/dl 

Alkaline phosphatase

IU/l 

1

IU/l

Aspartate aminotransferase

IU/l 

1

IU/l 

Bilirubin

µmol/l

0.0584

mg/dl 

BUN

mmol/l 

2.8

mg/dl 

Calcium 

mmol/l 

4

mg/dl 

Carbon dioxide (total)

mmol/l 

1

mEq/l 

Cholesterol

mmol/l 

38.61

mg/dl 

Chloride

mmol/l 

1

mEq/l  

Cortisol

nmol/l 

0.362

ng/ml 

Creatine kinase

IU/l 

1

IU/l 

Creatinine

µmol/l

0.0113

mg/dl 

Glucose

mmol/l 

18.02

mg/dl 

Insulin 

pmol/l 

0.1394

µIU/ml

Iron

µmol/l

5.587

µg/dl

Magnesium

mmol/l 

2

mEq/l 

Phosphorous

mmol/l 

3.1

mg/dl 

Potassium

mmol/l 

1

mEq/l 

Sodium

mmol/l 

1

mEq/l 

Total protein

g/l 

0.1

g/dl 

Thyroxine (T4) (free)

pmol/l 

0.0775

ng/dl 

Thyroxine (T4) (total)

pmol/l 

0.0775

µg/dl

Tri-iodothyronine (T3)

nmol/l 

65.1

ng/dl 

Triglycerides

mmol/l 

88.5

mg/dl 

Hypodermic needles

  Metric  Non-metric  
Needle gauge  0.8mm  21 G 
  0.6mm  23 G 
  0.5mm  25 G 
  0.4mm  27 G 
Needle length  12mm  ½ inch
  16mm  ⅝ inch 
  25mm  1 inch 
  30mm  1.25 inch 
  40mm  1.5 inch 

Suture material sizes

Metric (Ph. Eur.)   USP 
0.4  8/0
0.5 7/0
0.7 6/0
5/0 
1.5  4/0
2 3/0
3 2/0 
3.5 0
1
5 2
6
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