Cannulation for Medical Student OSCE
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‘I have been asked to set up a drip and give you some fluids. It is a simple procedure involving inserting a thin plastic tube into a vein on the back of your hand. The tube will then be connected to a bag containing fluid. You may feel a scratch when inserting the needle. Any questions?’
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Ask: renal problems / dialysis – good arm veins should be left for emergency – go higher up
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Set up equipment. Use 18G green / 20G pink – choose according to age (larger in younger people), and larger if emergency high flow rate needed
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Flush with saline (0.9%) to ensure there is no extravasation; ask if stings.
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Fluids: (colloid, saline, etc)
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Recheck patient’s I.D., comparing wrist band and fluid chart
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Check fluid chart for kind of fluid
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Check fluid bag for defects, contents, expiry date
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Hang up. Close clip. Half fill chamber with fluid. Open clip, let fluid run through, tap out air bubbles. Reclose clip
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Attach to white cap port of cannula
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Open clip. Adjust flow rate, using watch for 10s: 1 drop per second = 1L in 6 hours.
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Tape tube to patient’s arm
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Record in chart
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Cannula out in 3 days – infection control
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by: Admin
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Word Count: 334
Date: Fri, 22 Jan 2010 Time: 4:11 PM
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