ATI RN
ATI Fluid Electrolyte and Acid-Base Regulation
1. . A nurse is planning care for a nephrology patient with a new nursing graduate. The nurse states, A patient in renal failure partially loses the ability to regulate changes in pH. What is the cause of this partial inability?
- A. The kidneys regulate and reabsorb carbonic acid to change and maintain pH.
 - B. The kidneys buffer acids through electrolyte changes
 - C. The kidneys regenerate and reabsorb bicarbonate to maintain a stable pH.
 - D. The kidneys combine carbonic acid and bicarbonate to maintain a stable pH.
 
Correct answer: C
Rationale:
2. After administering 40 mEq of potassium chloride, a nurse evaluates the clients response. Which manifestations indicate that treatment is improving the clients hypokalemia? (Select all tha do not t apply.)
- A. Strong productive cough
 - B. Active bowel sounds
 - C. U waves present on the electrocardiogram (ECG)
 - D.
 
Correct answer: C
Rationale:
3. A patient is in the hospital with heart failure. The nurse notes during the evening assessment that the patient's neck veins are distended and the patient has dyspnea. What action should the nurse take?
- A. Place the patient in low Fowler's position and notify the physician.
 - B. Increase the patient's IV fluid and auscultate the lungs.
 - C. Place the patient in semi-Fowler's position and prepare to give the PRN diuretic as ordered.
 - D. Discontinue the patient's IV.
 
Correct answer: C
Rationale: The symptoms of distended neck veins and dyspnea indicate fluid overload in a patient with heart failure. Placing the patient in semi-Fowler's position helps with respiratory effort and administering diuretics, as ordered, can assist in reducing fluid volume. Placing the patient in low Fowler's position (Choice A) may not be as effective in improving breathing. Increasing IV fluid (Choice B) is contraindicated in fluid overload conditions. Discontinuing the IV (Choice D) is not the immediate intervention needed to address the symptoms of fluid overload.
4. Which of the following organs does not contribute to fluid output from the body?
- A. Lungs
 - B. Skin
 - C. Intestine
 - D. Lungs, skin, and intestine
 
Correct answer: D
Rationale: The correct answer is D. All the listed organs (lungs, skin, and intestines) contribute to fluid loss from the body. Lungs contribute to fluid loss through respiration, skin through sweating, and intestines through excretion. Therefore, none of the organs listed in the options retain fluids within the body. Choices A, B, and C are incorrect because all of these organs play a role in fluid output from the body.
5. Which of the following might the nurse assess in a patient diagnosed with hypermagnesemia?
- A. Diminished deep tendon reflexes
 - B. Tachycardia
 - C. Cool clammy skin
 - D. Increased serum magnesium
 
Correct answer: A
Rationale: The correct answer is A: Diminished deep tendon reflexes. In a patient with hypermagnesemia, the nurse would assess for diminished deep tendon reflexes. Hypermagnesemia can lead to neuromuscular depression, causing a decrease in deep tendon reflexes. Tachycardia (choice B) is more commonly associated with hypomagnesemia. Cool clammy skin (choice C) is not typically a direct symptom of hypermagnesemia. While hypermagnesemia does involve increased serum magnesium levels (choice D), assessing serum levels is a laboratory test and not a clinical assessment like checking deep tendon reflexes.
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