HESI Health Assessment Practice Test 2026 – All-in-One Study Guide for Exam Success!

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In a patient with extreme dehydration, what mucous membrane finding is most likely?

Smooth mucous membranes and lips

Dry mucous membranes and cracked lips

In a patient experiencing extreme dehydration, dry mucous membranes and cracked lips are commonly observed. Dehydration leads to a significant loss of moisture in the body, which is reflected in the state of the mucous membranes. When adequate fluid levels are not maintained, the mucous membranes become dry and may exhibit cracking due to a lack of hydration.

Smooth mucous membranes and lips typically suggest a well-hydrated state, which would not be expected in cases of extreme dehydration. Pale mucous membranes can be associated with conditions such as anemia or shock, but they do not specifically indicate dehydration. White patches on the mucous membranes might suggest infections or other pathological conditions, rather than dehydration. Therefore, the presence of dry mucous membranes and cracked lips is the most indicative finding in a patient with extreme dehydration.

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Pale mucous membranes

White patches on the mucous membranes

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