ATI LPN
ATI LPN Test Bank
Fluid Electrolyte Balance and Nutritional Needs Questions
Question 1 of 5
Antidiuretic hormone (ADH)
Correct Answer: C
Rationale: ADH, from the posterior pituitary, increases water reabsorption, concentrating urine.
Question 2 of 5
The most common cause of hyperkalemia is
Correct Answer: D
Rationale: Cell damage releases intracellular potassium into the extracellular fluid, causing hyperkalemia.
Question 3 of 5
Calcium's roles in the body include
Correct Answer: D
Rationale: Calcium is essential for bone structure, muscle function, clotting, and cardiac action potentials.
Question 4 of 5
Calcitonin
Correct Answer: D
Rationale: Calcitonin lowers blood calcium by inhibiting bone resorption.
Question 5 of 5
Loss of a large volume of sweat will
Correct Answer: D
Rationale: Sweat loss reduces plasma volume, increasing osmolality.