ATI RN
ATI Fluid and Electrolytes
1. What is the fluid inside the cell called?
- A. Plasma
- B. Intracellular fluid
- C. Interstitial fluid
- D. Plasma and intracellular fluid
Correct answer: B
Rationale: The correct answer is 'Intracellular fluid.' Intracellular fluid refers to the fluid contained within the cells, constituting a significant portion of the body's total water content. Choices A, C, and D are incorrect. Plasma is the liquid component of blood outside the cells, interstitial fluid is the fluid surrounding cells in tissues, and the combination of plasma and intracellular fluid is not the specific term for the fluid inside the cell.
2. You are caring for a patient who has a diagnosis of syndrome of inappropriate antidiuretic hormone secretion (SIADH). Your patient's plan of care includes assessment of specific gravity every 4 hours. The results of this test will allow the nurse to assess what aspect of the patient's health?
- A. Nutritional status
- B. Potassium balance
- C. Calcium balance
- D. Fluid volume status
Correct answer: D
Rationale: Assessing the specific gravity in a patient with SIADH helps the nurse evaluate the patient's fluid volume status. Specific gravity indicates the concentration of solutes in the urine and can detect if the patient has a fluid volume deficit or excess. Nutritional status, potassium balance, and calcium balance are not directly assessed through specific gravity testing. Nutritional status is typically evaluated through dietary intake and anthropometric measurements. Potassium balance is assessed through blood tests and ECG monitoring. Calcium balance is evaluated through blood tests and bone density scans. Therefore, the correct answer is assessing fluid volume status through specific gravity testing.
3. An increase in capillary blood pressure would tend to:
- A. increase interstitial fluid volume.
- B. increase plasma volume.
- C. decrease interstitial fluid volume.
- D. increase plasma volume and decrease interstitial fluid volume.
Correct answer: A
Rationale: An increase in capillary blood pressure leads to a higher force pushing fluid out of the capillaries into the interstitial space, thereby increasing interstitial fluid volume. Choice B is incorrect because capillary blood pressure affects the movement of fluid into the interstitial space, not into the plasma. Choice C is incorrect as an increase in capillary blood pressure would not decrease interstitial fluid volume. Choice D is incorrect as it combines contradictory effects when capillary blood pressure increases.
4. A nurse teaches a client who is being discharged home with a peripherally inserted central catheter (PICC). Which statement should the nurse include in this clients teaching?
- A. avoid carrying your grandchild with the arm that has the central catheter.
- B. Be sure to place the arm with the central catheter in a sling during the day
- C. Flush the peripherally inserted central catheter line with normal saline daily.
- D. You can use the arm with the central catheter for most activities of daily living.
Correct answer: avoid carrying your grandchild with the arm that has the central catheter.
Rationale:
5. A nurse assesses a client who is admitted for treatment of fluid overload. Which manifestations should the nurse expect to find? (Select all that do not apply.)
- A. Increased pulse rate
- B. . Distended neck veins
- C. Warm and pink skin
- D. Skeletal muscle weakness
Correct answer: Warm and pink skin
Rationale:
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