HESI RN
Cardiovascular System Exam Questions
Question 1 of 5
This term refers to a change in the inotropic state of the muscle without a change in myocardial fiber length.
Correct Answer: A
Rationale: Contractility is the correct answer as it specifically refers to the ability of the heart muscle to contract with a given force without changing its length. This term is used to describe changes in the inotropic state of the muscle, which affects the strength of contraction. Excitability, refractoriness, and automaticity do not directly relate to changes in muscle contraction force without altering fiber length. Excitability is the ability of the muscle to respond to stimuli, refractoriness is the recovery period after a muscle contraction, and automaticity is the ability of certain cells to generate spontaneous electrical activity.
Question 2 of 5
Which of the following conditions is identified by a P wave notch in the ECG of a client?
Correct Answer: D
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 3 of 5
If Mr. Lane, with essential hypertension, complains of dizziness when changing position, your evaluation would be that Mr. Lane
Correct Answer: B
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 4 of 5
Defibrillation is used immediately in cases of ventricular fibrillation or ventricular tachycardia. The reason for this is to
Correct Answer: A
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 5 of 5
You are working with an experienced nursing assistant and LPN/LVN in caring for a group of patients. You have developed a nursing diagnosis of Activity Intolerance related to fatigue and chest pain for a patient who had an acute myocardial infarction 3 days ago. Which of these nursing activities included in the care plan is best delegated to the LPN/LVN?
Correct Answer: B
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.