1. Reducing the risk of fatal and disabling hypoglycaemia: a comparison of arterial blood sampling systems 
K.A. Brennan, G. Eapen, D. Turnbull 
British Journal of Anaesthesia 
Volume 104, Issue 4, Pages (April 2010)
DOI: /bja/aeq027
Copyright © 2010 The Author(s) Terms and Conditions

2. Fig 1
Photograph of closed arterial line systems. Common features specific to these systems are an integrated syringe for sample aspiration and a needle-free (non-luer) aspiration port. (a) VAMP™ (Edwards Lifesciences), (b) Logical™ Closed (Smiths Medical), and (c) Safedraw™ (Becton Dickinson).
British Journal of Anaesthesia  , DOI: ( /bja/aeq027)
Copyright © 2010 The Author(s) Terms and Conditions

3. Fig 2
Schematic diagram of the ‘closed’ (a) and ‘open’ (b) transducer systems on test. The closed system represented is the Safedraw™ (Becton Dickinson) with a 5 ml fixed volume syringe.
British Journal of Anaesthesia  , DOI: ( /bja/aeq027)
Copyright © 2010 The Author(s) Terms and Conditions

4. Fig 3
(a) Boxplot demonstrating change in glucose concentration from open and closed arterial line sampling systems. (b) The closed arterial systems with no glucose concentration exceeding 0.4 mmol litre−1. (c) The arterial systems where sample contamination resulted in a glucose concentration of >1 mmol litre−1 (dashed line).
British Journal of Anaesthesia  , DOI: ( /bja/aeq027)
Copyright © 2010 The Author(s) Terms and Conditions

5. Fig 4
(a) Calculated glucose concentration in mmol when x ml of glucose is added to 1 ml of blood. (b) Estimated volume of 5% glucose (0.004 ml) required to elevate the actual blood glucose concentration by 1 mmol litre−1 (from 6 to 7 mmol litre−1).
British Journal of Anaesthesia  , DOI: ( /bja/aeq027)
Copyright © 2010 The Author(s) Terms and Conditions