The nurse is participating in the use of Ranson's criteria to assess a patient with pancreatitis. Which statement reflects a disadvantage of using these criteria?
1. It takes 48 hours for complete assessment.
2. Ranson's criteria are not valid for patients over 55.
3. This scoring system is not useful for persons with renal disease.
4. Invasive testing is necessary as part of Ranson's criteria.
Answer: 1
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