ATI LPN
Cardiovascular Questions Questions
Question 1 of 5
Tachycardia refers to
Correct Answer: C
Rationale: Tachycardia is defined as an abnormally rapid heart rate, typically above 100 beats per minute.
Question 2 of 5
A patient with newly diagnosed hypertension has come to the clinic for a follow-up visit. The patient asks the nurse why she has to come in so often. What would be the nurse's best response?
Correct Answer: D
Rationale: When hypertension is initially detected, nursing assessment involves carefully monitoring the BP at frequent intervals and then at routinely scheduled intervals. The reference to stroke is frightening and does not capture the overall rationale for the monitoring regimen. Changes throughout the day are not a clinical priority for most patients. The patient must not change his or her medication doses unilaterally.
Question 3 of 5
What is the O2 consumption of a beating heart at rest?
Correct Answer: D
Rationale: The oxygen consumption of a resting heart is approximately 9 ml/100g/min.
Question 4 of 5
During systole:
Correct Answer: D
Rationale: The end-systolic ventricular volume is approximately 50 mL.
Question 5 of 5
The systemic circulation includes all of the following structures except one. Which is the exception?
Correct Answer: D
Rationale: The pulmonary vein is part of the pulmonary circulation, not the systemic circulation.