ATI LPN
ATI LPN Med Surg Lv 3 Electrolytes Imbalance Questions
Extract:
Question 1 of 5
The nurse is reviewing laboratory results for a group of patients. Which value should be of most concern to the nurse?
Correct Answer: B
Rationale: A magnesium level of 1.0 mEq/L indicates hypomagnesemia, which can cause serious complications like arrhythmias and seizures, making it the most concerning value.
Question 2 of 5
A nurse is reviewing the medical record of a client and identifies a serum potassium 6.8 mEq/L (3.5-5 mEq/L). Which of the following medications should the nurse expect to administer?
Correct Answer: C
Rationale: Sodium polystyrene (Kayexalate) treats hyperkalemia by exchanging sodium for potassium in the intestines, promoting potassium elimination, suitable for a dangerously high potassium level of 6.8 mEq/L.
Question 3 of 5
A nurse is reinforcing discharge teaching with a client about dietary sources of potassium. Which of the following statements by the client indicates an understanding of the teaching?
Correct Answer: B
Rationale: Cantaloupe is a potassium-rich food, indicating the client understands the dietary teaching.
Question 4 of 5
A nurse is preparing to administer dextrose 5% in water IV to infuse at 100 mL/60 min. The drop factor on the manual IV tubing is 60 gtt/mL. The nurse should set the IV flow rate to deliver how many gtt/min? (Round to the nearest whole number.)
Correct Answer: A
Rationale: Using the formula Flow rate (gtt/min) = (Volume/Time) × Drop factor, 100 mL/60 min × 60 gtt/mL = 100 gtt/min.
Question 5 of 5
A nurse is assisting with the care of a client who has hypocalcemia. For which of the following signs should the nurse monitor?
Correct Answer: B
Rationale: Chvostek's sign, facial muscle twitching when the facial nerve is tapped, is a classic indicator of hypocalcemia.