Which of the Following Symptoms Is the First Sign of Dehydration

question 37

Multiple Choice

Which of the following symptoms is the first sign of dehydration?

• A) confusion
• B) fatigue
• C) thirst
• D) headache

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Definitions:

Tubular Secretion

The process by which substances are actively transported from blood into the urine within the kidneys.

Tubular Reabsorption

The process in the kidneys where substances are moved from the tubular fluid back into the blood, conserving water, electrolytes, and nutrients.

Renal Column

Parts of the kidney's tissue that extend between the pyramids, containing blood vessels and urinary tubes, and serving as a supportive structure for the cortex.

Renal Artery

A blood vessel that supplies oxygenated blood to the kidneys.