ATI LPN
100 Questions on the Cardiovascular System PDF Questions
Question 1 of 5
When recording lead III on an ECG, the negative electrode is the:
Correct Answer: A
Rationale: Lead III uses the left arm as the negative electrode and the left leg as the positive electrode.
Question 2 of 5
Which of the following type of shock is due to decreased TPR?
Correct Answer: B
Rationale: Neurogenic shock decreases total peripheral resistance (TPR) due to loss of sympathetic tone.
Question 3 of 5
cTnT binds to:
Correct Answer: A
Rationale: Cardiac troponin T (cTnT) binds to tropomyosin in the troponin complex.
Question 4 of 5
A 30-year-old woman has had coldness and numbness in her arms and decreased vision in the right eye for the past 5 months. On physical examination, radial pulses are not palpable, but femoral pulses are strong. She has decreased sensation and cyanosis in her arms, but no warmth or swelling. A chest radiograph shows a prominent border on the right side of the heart and prominence of the pulmonary arteries. Laboratory studies show negative ANA test result. Her condition remains stable for the next year. Which of the following is the most likely diagnosis?
Correct Answer: B
Rationale: Takayasu arteritis, a chronic vasculitis, causes pulselessness in the upper limbs and ocular symptoms.
Question 5 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.