ATI LPN
Cardiovascular NCLEX Questions with Rationale Questions
Question 1 of 5
IV sodium nitroprusside is ordered for a patient with acute pulmonary edema. During the first hours of administration, the nurse will need to titrate the nitroprusside rate down if the patient develops
Correct Answer: C
Rationale: Sodium nitroprusside is a potent vasodilator and the major adverse effect is severe hypotension. Coughing and bradycardia are not adverse effects of this medication. Nitroprusside does not cause increased ventricular ectopy.
Question 2 of 5
Which of the following is NOT supplied by the Circle of Willis?
Correct Answer: A
Rationale: The Circle of Willis supplies the brain and parts of the eyes, but not the nose or pharynx, which have separate vascular supplies.
Question 3 of 5
If the Purkinje fibers, situated distal to the AV junction, become the pacemaker of the heart, what is the expected heart rate?
Correct Answer: A
Rationale: Purkinje fibers as pacemakers produce a rate of 20-40 beats/min, with 30/min being typical.
Question 4 of 5
Which of the following substances in plasma is the major factor that contributes to plasma colloid osmotic pressure?
Correct Answer: C
Rationale: Albumin is the primary contributor to plasma colloid osmotic pressure due to its abundance and size.
Question 5 of 5
A 75-year-old male goes to the hospital ER and faints. Five minutes later he is alert. An ECG shows 75 P-waves per minute and 35 QRS complexes per minute with normal QRS width. Which of the following is the most likely diagnosis?
Correct Answer: B
Rationale: Stokes-Adams syndrome involves transient complete heart block, causing fainting with a slow ventricular rate.