ATI RN
Chapter 14 Nutrition and Fluid Balance Workbook Answers Questions
Question 1 of 5
The normal pH range for most body fluids is
Correct Answer: D
Rationale: Normal body fluid pH is tightly regulated between 7.38 and 7.42.
Question 2 of 5
How do kidneys alter urine concentration?
Correct Answer: A
Rationale: Kidneys adjust urine concentration by modulating water and sodium reabsorption in the distal nephron based on hormonal signals.
Question 3 of 5
When the pH of the extracellular fluid declines, the kidneys
Correct Answer: C
Rationale: Kidneys reabsorb potassium and excrete hydrogen ions to correct low pH.
Question 4 of 5
Dehydration may cause some ions to become concentrated. If a person was suffering from severe hyperkalemia, you would expect
Correct Answer: C
Rationale: Severe hyperkalemia disrupts membrane potentials, causing abnormal cardiac rhythms.
Question 5 of 5
Why do patients with undiagnosed diabetes often present with increased frequency of urination?
Correct Answer: C
Rationale: In diabetes mellitus, high blood glucose exceeds the renal threshold, leading to osmotic diuresis where glucose in the urine prevents water reabsorption, causing polyuria.