ATI RN
ATI Nur 221 Med Surg unit 4 Exam Questions
Extract:
Question 1 of 5
The nurse is reviewing the electrolyte results of a client and notes that the potassium level is 5.7. Which pattern on the cardiac monitor would the nurse expect to see?
Correct Answer: B
Rationale: Hyperkalemia (K+ > 5.0 mEq/L) causes tall, peaked T waves due to abnormal repolarization.
Question 2 of 5
A nurse is caring for a client who will have blood sampling for a serum creatinine level and asks what this test shows. Which of the following responses should the nurse make?
Correct Answer: B
Rationale: Serum creatinine is a key indicator of kidney function, showing how well kidneys filter waste.
Question 3 of 5
The client's potassium level is 2.2 What nursing action has the highest priority?
Correct Answer: C
Rationale: A potassium level of 2.2 mEq/L is critically low, increasing the risk of life-threatening cardiac arrhythmias. Continuous cardiac monitoring helps detect dangerous dysrhythmias like ventricular tachycardia.
Question 4 of 5
The nurse reviews the client's arterial blood gases and has the following results: pH 7.30. PaCO2 58, and HCO3 of 26. The nurse interprets these results that the client has which acid-base imbalance?
Correct Answer: D
Rationale: A low pH (<7.35) and high PaCO2 (>45 mmHg) indicate respiratory acidosis due to COâ‚‚ retention.
Question 5 of 5
The nurse is calculating the output of a client at the end of the shift. The nurse notes the following: the client voided 400 mL at 1100 and 350 at 1415. The chest tube was previously marked at 155 mL and is now 175 mL. The nasogastric tube has 575 mL in the drainage container and the Jackson Pratt drain had 25 mL emptied from it. How many ml's should the nurse record as output for the shift
Correct Answer: A
Rationale:
Total output is calculated as: Urine (400 mL + 350 mL = 750 mL) + Chest tube (175 mL - 155 mL = 20 mL) + Nasogastric tube (575 mL) + Jackson-Pratt drain (25 mL) = 1,370 mL.