ATI RN
Fluid and Electrolytes ATI
1. The nurse who assesses the patient's peripheral IV site and notes edema around the insertion site will document which complication related to IV therapy?
- A. Air emboli
- B. Phlebitis
- C. Infiltration
- D. Fluid overload
Correct answer: C
Rationale: Infiltration is the administration of non-vesicant solution or medication into the surrounding tissue. This can occur when the IV cannula dislodges or perforates the vein's wall. Infiltration is characterized by edema around the insertion site, leakage of IV fluid from the insertion site, discomfort, and coolness in the area of infiltration, and a significant decrease in the flow rate. Air emboli (Choice A) involves air entering the bloodstream. Phlebitis (Choice B) is inflammation of a vein. Fluid overload (Choice D) is an excessive volume of fluid in the circulatory system.
2. A nurse is caring for a client who is having a subclavian central venous catheter inserted. The client begins to report chest pain and difficulty breathing. After administering oxygen, which action should the nurse take next?
- A. Administer a sublingual nitroglycerin tablet
- B. Prepare to assist with chest tube insertion.
- C. . Place a sterile dressing over the IV site
- D. Re-position the client into the Trendelenburg position.
Correct answer: B
Rationale:
3. A nurse is caring for a client who has the following laboratory results: potassium 3.4 mEq/L, magnesium 1.8 mEq/L, calcium 8.5 mEq/L, sodium 144 mEq/L. Which assessment should the nurse complete first?
- A. Depth of respirations
- B. Bowel sounds
- C. Grip strength
- D. Electrocardiography
Correct answer: A
Rationale: The correct answer is 'Depth of respirations.' In a client with electrolyte imbalances like low potassium (hypokalemia) and low magnesium (hypomagnesemia), respiratory changes, such as shallow respirations or respiratory muscle weakness, can occur and lead to respiratory compromise. Assessing the depth of respirations is crucial to evaluate respiratory function in this client. Bowel sounds, grip strength, and electrocardiography are also important assessments in different situations, but in this case, respiratory assessment takes priority due to the potential impact of electrolyte imbalances on breathing.
4. 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: A low pH indicates acidosis (normal pH is 7.35 to 7.45). The PaCO2 is also low, which causes alkalosis. The bicarbonate is low, which causes acidosis. The pH bicarbonate more closely corresponds with a decrease in pH, making the metabolic component the primary problem. Therefore, the correct interpretation of the arterial blood gas results is metabolic acidosis with a compensatory respiratory alkalosis. Choices A, B, and C are incorrect because they do not accurately reflect the primary acid-base disturbance and the compensatory response seen in the given results.
5. Diagnostic testing has been ordered to differentiate between normal anion gap acidosis and high anion gap acidosis in an acutely ill patient. What health problem typically precedes normal anion gap acidosis?
- A. Metastases
- B. Excessive potassium intake
- C. Water intoxication
- D. Excessive administration of chloride
Correct answer: D
Rationale:
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