ATI LPN
Cardiovascular MCQ Questions Questions
Question 1 of 5
Which of the following statements is true regarding fluid management in AKI?
Correct Answer: D
Rationale: Both Ringer's lactate and normal saline have similar outcomes in AKI fluid management, as studies show no significant difference in mortality or renal recovery.
Question 2 of 5
First-degree heart block is characterized by
Correct Answer: A
Rationale: First-degree block is generally identified by a prolonged PR interval (more than 0.20 second) on ECG. P waves are not absent in first-degree heart block. A widened QRS complex is associated with a particular dysrhythmia, but not first-degree heart block. A variable PR interval is found in type I second-degree block.
Question 3 of 5
A patient's ECG lacks recognizable waveforms and is deemed to be in sinus arrest. The patient's sinus arrest may be a result of
Correct Answer: A
Rationale: Sinus arrest may result from MI, electrical shock, electrolyte disturbances, acidosis, and extreme parasympathetic activity.
Question 4 of 5
The physician's order says to administer Lasix 40 mg IV twice a day. The patient has the following morning labs: Na+ 148, BNP 900, K+ 2.0, and BUN 10. Which of the following is a nursing priority?
Correct Answer: D
Rationale: K+ 2.0 indicates hypokalemia, worsened by Lasix; hold the dose and notify the physician (D).
Question 5 of 5
When the ventricles relax
Correct Answer: A
Rationale: Ventricular relaxation (diastole) causes a drop in pressure, allowing blood to fill the ventricles from the atria, not forcing valves open or reversing flow.