ATI RN
Nutrition and Fluid Balance Questions
Question 1 of 5
What does not cause impaired accuracy of the pulse oximeter?
Correct Answer: D
Rationale: X-ray beams do not affect pulse oximetry accuracy; the others do.
Question 2 of 5
The primary route for ion loss from the body is the system.
Correct Answer: B
Rationale: The urinary system is the main pathway for ion excretion, such as sodium and potassium, via urine.
Question 3 of 5
Most body water is located in
Correct Answer: C
Rationale: Approximately 60% of body water is intracellular, located within cells, making it the largest compartment.
Question 4 of 5
The hormone that regulates water reabsorption by the kidneys
Correct Answer: D
Rationale: Vasopressin increases water permeability specifically in the collecting ducts, not throughout all tubules.
Question 5 of 5
When venous return is increased, stretch receptors in the atria of the heart are activated. This results in
Correct Answer: B
Rationale: Increased venous return signals adequate volume, inhibiting vasopressin to reduce water retention.