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Laboratory results

 

HAEMATOLOGY NORMAL RANGE (Non-pregnant typical range) Pregnant typical range NORMAL RANGE (Neonates)
Haemoglobin (women) 11.5-16.5 g/dl 10.0-12.0
(≤10 in third trimester)
17.0-21.0 x 109/l
Mean cell volume 76-96 ml    
Platelets 150-400 x 109/l Slight decrease in normal pregnancy 150-450
White cells (total) 4-11 x 109/l 9.0-15.0 9-40 x 109/l
- neutrophils 40-75%   1.5-10
- lymphocytes 20-45%    
- eosinophils 1-6%    
Fibrinogen 1.7-4.1g/l 2.9-6.2 (at term)  
BIOCHEMISTRY
Urea and electrolytes (U&E)    
Sodium 135-145 mmol/l   133-145 mmol/l
Potassium 3.5-5.3 mmol/l Unchanged 3.5-6.0 mmol/l
Creatinine 50-100 μmol/l 75 approx is upper limit of normal 15-55 μmol/l
Urea 2.5-6.7 mmol/l Usually ≤4.5 mmol/l 1.7-6.7 mmol/l
Uric acid 150-350 μmol/l    
Calcium 2.12-2.65 mmol/l   2.10-2.80 mmol/l
Albumin 35-48 mmol/l 25-35 mmol/l  
Proteins 60-80 g/l    
Liver function tests        
Bile acids <9 μmol/l    
Bilirubin <17 μmol/l    
Alanine aminotransferase (ALT) 6 -40 IU/l No change ≤40 IU/l
Aspartate transaminase (AST) <50 IU/l   ≤60 IU/l
Alkaline phosphatase 40-120 IU/l Doubled by late pregnancy  
Cardiac enzymes      
Creatine kinase 25-195 IU/l    
Lactate dehydrogenase (LDH) 70-250 IU/l  
Lipids      
Total cholesterol <5 mmol/l (desired)*    
High density lipoprotein (HDL) cholesterol >1.2 mmol/l (desired)    
Low density lipoprotein (LDL) cholesterol <3 mmol/l (desired)**  
TC:HDL ratio ≤4.5 (desired)    
Triglycerides 0.5-1.9 mmol/l    
*<4 mmol/l in the presence of CHD, CKD, diabetes, stroke/TIA
**<2 mmol/l in the presence of CHD, CKD, diabetes, stroke/TIA
   
Other      
Albumin 30-48 g/l 25-35g/l 25-45 g/l
Amylase 60-200 somogyi u/dl
70-300 IU/l (depending on method used)
   
C-reactive protein (CRP) <10mg/l    
Blood glucose (fasting) 3.5-5.5 mmol/l    
T4 (total thyroxine) 70-140 mmol/l    
TSH (thyroid stimulating hormone) 0.5-5 mu/l    
Blood gases      
pH 7.35-7.45    
PaO2 >10.6 kPa/75-100 mmHg    
PaCo2 4.7-6 kPa/35-45 mmHg    
Base excess ±2 mmol/l    

N.B. Some ranges will vary between laboratories and this is only a guide. Check reference values with your local laboratory

 

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