The client is undergoing an oral glucose tolerance test. The nurse interprets that the client's results are not compatible with diabetes mellitus if the glucose level is lower than which of the following cutoff values after 120 minutes (2 hours)?

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For a diagnosis of diabetes mellitus to be considered, the 2-hour oral glucose tolerance test (OGTT) value must be 200 mg/dL (11.1 mmol/L) or higher. Therefore, a value lower than 140 mg/dL is considered not compatible with diabetes mellitus, falling into the normal or non-diabetic range.

The Client Is Undergoing an Oral Glucose Tolerance Test