ATI LPN
Fluid Balance and Nutrition Questions
Question 1 of 5
The predominant intracellular cation is
Correct Answer: A
Rationale: Potassium is the primary cation inside cells, maintaining membrane potential and cellular function.
Question 2 of 5
Which of the following is most likely to happen to a group of students who relax by drinking a pitcher of their favorite beverage?
Correct Answer: A
Rationale: Fluid intake (e.g., beer) increases blood volume, reducing ADH and increasing urine volume.
Question 3 of 5
Atrial natriuretic hormone increases
Correct Answer: A
Rationale: ANH promotes natriuresis, increasing urine volume to reduce blood volume.
Question 4 of 5
Aldosterone secretion may be stimulated by
Correct Answer: B
Rationale: High potassium levels stimulate aldosterone release to restore balance.
Question 5 of 5
Calcium balance is influenced by
Correct Answer: C
Rationale: PTH and vitamin D regulate calcium absorption and resorption.