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stool osmolal gap

Notes: - the osmolal gap is calculated in the absence of a measured stool osmolality as: 290 - (2 * (stool Na+ + stool K+) - an osmolal gap > 100 mOsm/kg indicates an osmotic diarrhea

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stool osmolality

General

laboratory analysis

References

  1. Medical Knowledge Self Assessment Program (MKSAP) 16 American College of Physicians, Philadelphia 2012