ATI LPN
100 Questions on the Cardiovascular System PDF Questions
Question 1 of 5
cTnT binds to:
Correct Answer: A
Rationale: Cardiac troponin T (cTnT) binds to tropomyosin in the troponin complex.
Question 2 of 5
Which one of the following is a relative contraindication of thrombolytic agents?
Correct Answer: C
Rationale: Severe hypertension is a relative contraindication due to bleeding risk.
Question 3 of 5
Hypertension patient with renal disease was prescribed Clonidine, but he stopped it abruptly. Which of the following side effects will he experience?
Correct Answer: C
Rationale: Abrupt cessation of clonidine causes rebound hypertension.
Question 4 of 5
Without SA node input, what would the heart rate be?
Correct Answer: A
Rationale: The intrinsic rate of the AV node is about 40-60 bpm, but without any nodal input, the heart's autorhythmic cells could still generate a rhythm around 50 bpm.
Question 5 of 5
Hypertension can decrease cardiac output by directly causing an increase in___
Correct Answer: A
Rationale: Hypertension increases afterload, making it harder for the ventricles to eject blood, which raises end systolic volume and reduces stroke volume.