Questions 9

ATI RN

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Fluid and Electrolytes ATI Questions

Question 1 of 5

A patient who is in renal failure partially loses the ability to regulate changes in pH because the kidneys:

Correct Answer: C

Rationale: The kidneys regulate the bicarbonate level in the ECF; they can regenerate bicarbonate ions as well as reabsorb them from the renal tubular cells. In respiratory acidosis and most cases of metabolic acidosis, the kidneys excrete hydrogen ions and conserve bicarbonate ions to help restore balance.

Question 2 of 5

A patient's lab results show a slight decrease in potassium. The physician has declined to treat with drug therapy but has suggested increasing the potassium through diet. Which of the following would be a good source of potassium?

Correct Answer: D

Rationale: Bananas are high in potassium. Apples, carrots, and asparagus are not high in potassium.

Question 3 of 5

Which of the following might the nurse assess in a patient diagnosed with hypermagnesemia?

Correct Answer: A

Rationale: To gauge a patient's magnesium status, the nurse should check deep tendon reflexes. If the reflex is absent, this may indicate high serum magnesium.

Question 4 of 5

The renin and angiotensin systems help to maintain the balance of sodium and water in the body. What other functions do these systems serve?

Correct Answer: B

Rationale: The renin and angiotensin systems help to maintain the balance of sodium and water in the body and maintain healthy blood volumes.

Question 5 of 5

The nurse in the intensive care unit receives arterial blood gases (ABG) with a patient who is complaining of being 'short of breath.' The ABG has the following values: pH = 7.21, PaCO2 = 64 mm Hg, HCO3 = 24 mm Hg. The labs reflect:

Correct Answer: A

Rationale: A pH of less than 7.40, a PaCO2 greater than 40, and an HCO3 of 24 are normal; therefore, it is a respiratory acidosis. Compensation by the kidneys has not begun, which indicates this was probably an acute event.

Similar Questions

The nurse in the intensive care unit receives arterial blood gases (ABG) with a patient who is complaining of being 'short of breath.' The ABG has the following values: pH = 7.21, PaCO2 = 64 mm Hg, HCO3 = 24 mm Hg. The labs reflect:
A 65-year-old male patient was admitted to a medical-surgical unit 72 hours ago with pyloric stenosis; a nasogastric tube was inserted upon admission and has been on low intermittent suction since then. The nurse taking care of the patient notices that his potassium is very low and becomes concerned that the patient may be at risk for:
The nurse is assessing the patient for the presence of a Chvostek's sign. What electrolyte imbalance does a positive Chvostek's sign indicate?
A patient is taking spironolactone (Aldactone) to control her hypertension. Her serum potassium level is 6 mEq/L. For this patient, the nurse's priority would be to assess her:
A nurse is visiting an 84-year-old woman living at home and recovering from hip surgery. The woman seems confused and has poor skin turgor, and she states that 'she stops drinking water early in the day because it is too difficult to get up during the night to go to the bathroom.' The nurse explains to the woman that:

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