Official websites use .gov
A
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government organization in the United States.
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) or https:// means you've safely
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Time score derived from the following criteria: easy/1 = cannulation achieved within 5 minutes; moderate/2 = cannulation achieved in 5 to 10 minutes; difficult/3 = cannulation achieved in more than 10 minutes. Attempt score derived from the following criteria: easy/1 = cannulation achieved in 1 attempt; moderate/2 = cannulation achieved in 2 to 5 attempts; difficult/3 = cannulation achieved in 6 or more attempts.
