Fluid and Electrolytes ATI

Questions 40

ATI RN

ATI RN Test Bank

Fluid and Electrolytes ATI Questions

Question 1 of 5

The nurse is evaluating a patient's laboratory results. Based upon the laboratory findings, what results will cause the release of an antidiuretic hormone (ADH)?

Correct Answer: A

Rationale: Increased serum sodium causes increased thirst and the release of ADH by the posterior pituitary gland.

Question 2 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 3 of 5

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?

Correct Answer: C

Rationale: The symptoms of neck vein distention and dyspnea suggest fluid overload. Placing the patient in semi-Fowler's position and administering diuretics can help reduce fluid volume and improve breathing.

Question 4 of 5

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:

Correct Answer: C

Rationale: Probably the most common cause of metabolic alkalosis is vomiting or gastric suction with loss of hydrogen and chloride ions. The disorder also occurs in pyloric stenosis in which only gastric fluid is lost. Vomiting, gastric suction, and pyloric stenosis all remove potassium and can cause hypokalemia.

Question 5 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.

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