ATI LPN
ATI LPN Test Bank
Nutrition and Fluid Balance Questions
Question 1 of 5
Decreased extracellular potassium levels cause
Correct Answer: B
Rationale: Low extracellular potassium hyperpolarizes membranes, reducing excitability.
Question 2 of 5
Stimulus for the secretion of parathyroid hormone is a decrease in serum
Correct Answer: B
Rationale: Low serum calcium triggers PTH release to restore levels.
Question 3 of 5
Angiotensin II increases blood volume by stimulating
Correct Answer: A
Rationale: Angiotensin II stimulates thirst and ADH, increasing blood volume.
Question 4 of 5
pH
Correct Answer: C
Rationale: pH measures hydrogen ion concentration, inversely related to acidity.
Question 5 of 5
An increase in blood CO₂ levels is followed by a(n) in H⁺ ions and a(n) in blood pH.
Correct Answer: D
Rationale: More CO₂ forms carbonic acid, increasing H⁺ and lowering pH.