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Across 4. The needle size recommended for paediatric or geriatric veins 5. This tube additive is an anticoagulant that preserves cellular integrity 6. These veins should not be used for venipuncture unless approved by a doctor 7. The needle size never recommended for venipuncture as can cause haemolysis 9. This tube additive allows for testing of blood in stat situations 12. (2 words) This tube additive removes calcium from the clotting cascade preventing clotting 15. This vein is difficult to find in obese patients 16. (2 words) This should never be done when attempting to locate a vein, can cause nerve injury 17. This should only be left on for 2 minutes 18. The tube required for a U&E 19. This vein should be first choice for venipuncture 20. the area in front of the elbow most recommended for venipuncture

Down 1. The collection set that allows for a lower angle of insertion 2. This complication can occur with incorrect tourniquet application 3. The needle size recommended for routine venipuncture 8. The process of obtaining a blood sample for haematological, bacteriological and biochemical analysis 10. It is necessary to do this to a vein to prevent it from rolling 11. This vein is close to the brachial artery and median nerve 13. The most common complication of venipuncture 14. This type of collection system is fast to use but can collapse fragile veins