ATI RN
ATI Fluid Electrolyte and Acid-Base Regulation
1. You are caring for a patient who is being treated on the oncology unit with a diagnosis of lung cancer with bone metastases. During your assessment, you note the patient complains of a new onset of weakness with abdominal pain. Further assessment suggests that the patient likely has a fluid volume deficit. You should recognize that this patient may be experiencing what electrolyte imbalance?
- A. Hypernatremia
- B. Hypomagnesemia
- C. Hypophosphatemia
- D. Hypercalcemia
Correct answer: D
Rationale:
2. A patient admitted with a gastrointestinal bleed and anemia is receiving a blood transfusion. Based on the patient's hypotensive blood pressure, the nurse anticipates an order for IV fluids from the physician. Which of the following IV solutions may be administered with blood products?
- A. D5 and 0.45% Normal Saline
- B. Lactated Ringer's
- C. 5% dextrose in water
- D. 0.9% NaCl
Correct answer: D
Rationale: The correct answer is D: 0.9% NaCl. The only IV solution that can be administered with blood products is normal saline (0.9% NaCl). This solution is compatible with most blood products and is commonly used during transfusions to maintain hemodynamic stability. Choices A, B, and C are incorrect. Choice A, D5 and 0.45% Normal Saline, contains dextrose and is not recommended to be given simultaneously with blood products. Choice B, Lactated Ringer's, contains calcium, which can cause coagulation and should not be mixed with blood. Choice C, 5% dextrose in water, is hypotonic and not suitable to be administered with blood products.
3. 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.
4. A client at risk for mild hypernatremia is being taught by a nurse. Which statement should the nurse include in this client's teaching?
- A. Weigh yourself every morning and every night
- B. Check your radial pulse twice a day
- C. Read food labels to determine sodium content
- D. Bake or grill the meat rather than frying it
Correct answer: C
Rationale: The correct answer is to 'Read food labels to determine sodium content.' This is important for a client at risk for mild hypernatremia because monitoring sodium intake is crucial in managing this condition. Choice A is not directly related to managing hypernatremia. Choice B focuses on pulse monitoring, which is not specific to managing sodium levels. Choice D addresses cooking methods, which can be beneficial but is not as directly related to sodium intake monitoring as reading food labels.
5. The chief mechanism for maintaining fluid balance is to:
- A. adjust fluid intake so it equals fluid output.
- B. adjust fluid intake so it is slightly above fluid output.
- C. adjust fluid output so it equals fluid input.
- D. adjust fluid intake so it is slightly below fluid output.
Correct answer: C
Rationale: The correct answer is C: 'adjust fluid output so it equals fluid input.' Maintaining fluid balance involves ensuring that the amount of fluid lost through processes like urination, sweating, and respiration equals the amount of fluid taken in. This ensures that the body stays properly hydrated. Choices A, B, and D are incorrect because they do not focus on the balance between fluid input and output, which is crucial for maintaining proper fluid balance. By adjusting fluid output to equal fluid input, the body can regulate hydration levels effectively, preventing dehydration or overhydration.
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