ATI LPN
ATI LPN Med Surg Lv 3 Electrolytes Imbalance Questions
Extract:
Question 1 of 5
A nurse is collecting data from a client who has a calcium level of 8 mg/dL (9.0-10.5 mg/dL). Which of the following manifestations should the nurse expect?
Correct Answer: D
Rationale: Tetany, involving muscle cramps and spasms, is a common manifestation of hypocalcemia due to increased neuromuscular excitability at low calcium levels.
Question 2 of 5
A nurse is reviewing the laboratory values for a client who takes spironolactone and notes that the client's serum potassium level is 6.8 mEq/L (3.5 -5 mEq/L). The nurse notifies the provider and anticipates that the provider will provide which of the following instructions?
Correct Answer: C
Rationale: Hyperkalemia can cause life-threatening cardiac dysrhythmias, necessitating an ECG to monitor for abnormalities.
Question 3 of 5
At 0330, a nurse is caring for a client who is postoperative. The client's IV fluids are infusing at 120 mL/hr. How many mL of IV fluid should infuse by 0600? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
Correct Answer: B
Rationale: From 0330 to 0600 is 2.5 hours; 120 mL/hr × 2.5 hr = 300 mL.
Question 4 of 5
A nurse is preparing to administer 400 mL of 0.9% sodium chloride IV over 8 hr. The drop factor of the manual IV tubing is 60 gtt/mL. The nurse should set the manual IV infusion to deliver how many gtt/min? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
Correct Answer: B
Rationale: Using the formula Flow rate (gtt/min) = (Volume/Time) × Drop factor, 400 mL / (8 × 60) × 60 gtt/mL = 50 gtt/min.
Question 5 of 5
Which is the most reliable method for monitoring improvement when restoring fluid balance?
Correct Answer: D
Rationale: Daily weights directly reflect changes in fluid retention or loss, providing the most reliable measure of fluid balance.