The physician orders gastric lavage to control GI bleeding. The nurse has inserted a large-bore NG tube. What temperature and irrigating fluid would be used to obtain the best results?
a. Warm NS or water c. Room temperature NS or water
b. Iced NS or water d. Iced NS only
C
Historically, iced saline was favored as a lavage irrigant. Research has shown, however, that low-temperature fluids shift the oxyhemoglobin dissociation curve to the left, decrease oxygen delivery to vital organs, and prolong bleeding time and prothrombin time. Iced saline also may further aggravate bleeding; therefore, room temperature water or saline is the preferred irrigant for use in gastric lavage.
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