ATI RN
ATI Fluid Electrolyte and Acid-Base Regulation
1. You are an emergency-room nurse caring for a trauma patient. Your patient has the following arterial blood gas results: pH 7.26, PaCO2 28, HCO3 11 mEq/L. How would you interpret these results?
- A. Respiratory acidosis with no compensation
 - B. Metabolic alkalosis with a compensatory alkalosis
 - C. Metabolic acidosis with no compensation
 - D. Metabolic acidosis with a compensatory respiratory alkalosis
 
Correct answer: D
Rationale:
2. A home care nurse prepares to administer intravenous medication to a client. The nurse assesses the site and reviews the clients chart prior to administering the medication: Client: Thomas Jackson DOB: 5/3/1936 Gender: Male January 23 (Today): Right uppe
- A. Notify the health care provider
 - B. . Administer the prescribed medication.
 - C. Discontinue the PICC
 - D. Switch the medication to the oral route
 
Correct answer: B
Rationale:
3. While assessing a clients peripheral IV site, the nurse observes a streak of red along the vein path and palpates a 4-cm venous cord. How should the nurse document this finding?
- A. Grade 3 phlebitis at IV site
 - B. infection at IV site
 - C. Thrombosed area at IV site
 - D. infiltration at IV site
 
Correct answer: A
Rationale:
4. A nurse assesses a client who is prescribed furosemide (Lasix) for hypertension. For which acid-base imbalance should the nurse assess to prevent complications of this therapy?
- A. Respiratory acidosis
 - B. Respiratory alkalosis
 - C. Metabolic acidosis
 - D. Metabolic alkalosis
 
Correct answer: D
Rationale:
5. The nurse is admitting a patient with a suspected fluid imbalance. The most sensitive indicator of body fluid balance is:
- A. Daily weight
 - B. Serum sodium levels
 - C. Measured intake and output
 - D. Blood pressure
 
Correct answer: A
Rationale: Daily weight is the most sensitive indicator of body fluid balance because it can show trends over time, helping in assessing the effectiveness of interventions and medications. While serum sodium levels provide objective data on electrolyte balance, they may not accurately reflect fluid balance, especially if a patient is dehydrated. Measured intake and output are crucial for assessing fluid balance, but it can be challenging to match the two due to various ways fluid is lost from the body. Blood pressure and other vital signs may not always be reliable indicators of fluid balance as they can be influenced by other factors beyond fluid status.
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