NCLEX-RN
NCLEX-RN Exam Practice Questions
Extract:
Question 1 of 5
The primary reason that an increase in heart rate (100 bpm) detrimental to the client with a myocardial infarction (MI) is that:
Correct Answer: D
Rationale: Decreased stroke volume and blood pressure will occur secondary to decreased diastolic filling. Tachycardia primarily decreases diastole; systolic time changes very little. Contractility decreases owing to the decreased filling time and decreased time for fiber lengthening. Decreased O2 supply due to decreased time for filling of the coronary arteries increases ischemia and infarct size. Tachycardia primarily robs the heart of diastolic time, which is the primary time for coronary artery filling.
Question 2 of 5
A priority nursing diagnosis for a child following a tonsillectomy is:
Correct Answer: C
Rationale: Post-tonsillectomy the priority is risk for injury/aspiration due to potential bleeding or swelling that could obstruct the airway. Nutrition communication and urinary elimination are secondary concerns.
Question 3 of 5
In healthcare settings, nurses must be familiar with primary, secondary, and tertiary levels of care. As a nurse in the community, which of the following interventions might be a primary prevention strategy?
Correct Answer: C
Rationale: Reducing the incidence of disease through education supports primary prevention.
Question 4 of 5
A client with a history of sarcoidosis is admitted with complaints of dyspnea. The nurse should give priority to:
Correct Answer: A
Rationale: Sarcoidosis can cause lung granulomas, leading to dyspnea, so monitoring respiratory status is critical to assess lung function.
Question 5 of 5
A client returns to the cardiovascular intensive care unit following his coronary artery bypass graft. In planning his care, the most important electrolyte the nurse needs to monitor will be:
Correct Answer: C
Rationale: Potassium will need to be closely monitored because of its effects on the heart. Hypokalemia could result in supraventricular tachyarrhythmias.