ATI RN
ATI Fluid Electrolyte and Acid-Base Regulation
1. A client at risk for developing hyperkalemia states, 'I love fruit and usually eat it every day, but now I can't because of my high potassium level.' How should the nurse respond?
- A. Potatoes and avocados can be substituted for fruit.
- B. If you cook the fruit, the amount of potassium will be lower.
- C. Berries, cherries, apples, and peaches are low in potassium.
- D. You are correct. Fruit is very high in potassium.
Correct answer: C
Rationale: The correct answer is C. Berries, cherries, apples, and peaches are indeed low in potassium, making them suitable choices for someone at risk for hyperkalemia. Choice A is incorrect because potatoes and avocados are high in potassium and should be avoided in this situation. Choice B is incorrect because cooking fruit does not significantly lower its potassium content. Choice D is incorrect as it provides incorrect information, as not all fruits are very high in potassium.
2. When preparing a site for the insertion of an IV catheter, how should excess hair at the site be treated?
- A. Leaving the hair intact
- B. Shaving the area
- C. Clipping the hair in the area
- D. Removing the hair with a depilatory
Correct answer: C
Rationale: The correct answer is to clip the hair in the area. Excess hair at the site of IV catheter insertion should be removed because it can be a potential source of infection. Clipping the hair is preferred over shaving because shaving can cause skin abrasions, increasing the risk of infection. Using depilatories is not recommended as they can irritate the skin, which is undesirable when preparing a clean site for an invasive procedure. Therefore, clipping the hair in the area is the most appropriate and safe method to prepare the site for IV catheter insertion.
3. 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:
- A. Hypercalcemia
- B. Metabolic acidosis
- C. Metabolic alkalosis
- D. Respiratory acidosis
Correct answer: C
Rationale: The correct answer is C, metabolic alkalosis. The patient with pyloric stenosis has been on low intermittent suction, leading to the loss of hydrogen and chloride ions. This condition causes metabolic alkalosis due to the removal of these ions. Options A (Hypercalcemia) and D (Respiratory acidosis) are incorrect as they are not directly related to the scenario described. Option B (Metabolic acidosis) is also incorrect; in this case, the patient is at risk of metabolic alkalosis due to the loss of hydrogen and chloride ions through gastric suction.
4. The nurse is caring for a patient in metabolic alkalosis. The patient has an NG tube to low intermittent suction for a diagnosis of bowel obstruction. What drug would the nurse expect to find on the medication orders?
- A. Cimetidine
- B. Maalox
- C. Potassium chloride elixir
- D. ) Furosemide
Correct answer: A
Rationale:
5. How would a decrease in blood protein concentration impact the fluid volumes?
- A. increase interstitial fluid volume.
- B. decrease blood plasma volume.
- C. decrease interstitial fluid volume.
- D. increase interstitial fluid volume and decrease blood plasma volume.
Correct answer: D
Rationale: A decrease in blood protein concentration would lead to a reduction in osmotic pressure, which is responsible for drawing fluid back into the capillaries. This decrease in osmotic pressure would result in an increase in interstitial fluid volume as fluid moves out of the capillaries, and a decrease in blood plasma volume as less fluid is drawn back into the circulation. Therefore, the correct answer is to increase interstitial fluid volume and decrease blood plasma volume. Choices A, B, and C are incorrect because they do not reflect the impact of decreased blood protein concentration on fluid volumes.
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