ATI RN
ATI Fluid Electrolyte and Acid-Base Regulation
1. 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: A
Rationale:
2. A nurse is assessing a client with hypokalemia and notes that the client's handgrip strength has diminished since the previous assessment 1 hour ago. Which action should the nurse take first?
- A. Assess the client's respiratory rate, rhythm, and depth.
 - B. Measure the client's pulse and blood pressure.
 - C. Document findings and monitor the client.
 - D. Call the healthcare provider.
 
Correct answer: A
Rationale: In a client with hypokalemia experiencing diminished handgrip strength, the priority action for the nurse is to assess the client's respiratory rate, rhythm, and depth. Hypokalemia can lead to muscle weakness, including respiratory muscles, potentially causing respiratory distress. Assessing the respiratory status is crucial to determine if immediate interventions are needed to maintain adequate oxygenation. Measuring the client's pulse and blood pressure (Choice B) is important but should come after assessing the respiratory status. Simply documenting findings and monitoring the client (Choice C) may delay necessary interventions. Calling the healthcare provider (Choice D) is not the first action indicated in this situation; assessing the client's respiratory status takes precedence.
3. The physician has ordered a peripheral IV to be inserted before the patient goes for computed tomography. What should the nurse do when selecting a site on the hand or arm for insertion of an IV catheter?
- A. Choose a site with minimal hair if available.
 - B. Consider potential effects on the patient's mobility when selecting a site.
 - C. Instruct the patient to hold his arm in a dependent position before insertion.
 - D. Remove the tourniquet after 2 minutes.
 
Correct answer: B
Rationale: When selecting a site for IV insertion on the hand or arm, it is important to consider the potential effects on the patient's mobility. The chosen site should not interfere with the patient's movement. Instructing the patient to hold his arm in a dependent position helps increase blood flow, aiding in vein visualization and insertion. It is advisable to choose a site with minimal hair if possible for better adhesion of the dressing. Removing the tourniquet after 2 minutes is recommended to prevent complications like hemoconcentration and potential vein damage. Therefore, option B is the correct choice as it aligns with best practices for IV insertion.
4. Extracellular fluid includes:
- A. plasma and intracellular fluid.
 - B. interstitial and intracellular fluids.
 - C. plasma and interstitial fluid.
 - D. plasma, interstitial fluid, and intracellular fluid.
 
Correct answer: C
Rationale: The correct answer is C: 'plasma and interstitial fluid.' Extracellular fluid consists of all body fluids outside the cells, primarily including plasma (the liquid component of blood) and interstitial fluid (the fluid between cells). Choices A, B, and D are incorrect because intracellular fluid is located within the cells, not in the extracellular fluid compartment.
5. . A nurse assesses a client with diabetes mellitus who is admitted with an acid-base imbalance. The clients arterial blood gas values are pH 7.36, PaO2 98 mm Hg, PaCO2 33 mm Hg, and HCO3 18 mEq/L. Which manifestation should the nurse identify as an exam
- A. Increased rate and depth of respirations
 - B. ncreased urinary output
 - C. Increased thirst and hunger
 - D. ncreased release of acids from the kidneys
 
Correct answer: A
Rationale:
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