ATI LPN
Cardiovascular Questions Questions
Question 1 of 5
When recording lead II on an ECG, the positive electrode is the:
Correct Answer: B
Rationale: Lead II uses the left leg as the positive electrode and the right arm as the negative electrode.
Question 2 of 5
The tendency for edema to occur will be increased by:
Correct Answer: B
Rationale: Arteriolar constriction raises capillary pressure, promoting edema.
Question 3 of 5
Which one of the following lipoproteins is involved in the pathogenesis of atherosclerosis?
Correct Answer: A
Rationale: LDL contributes to atherosclerosis by depositing cholesterol in arterial walls.
Question 4 of 5
A 7-year-old child has had abdominal pain and dark urine for 10 days. Physical examination shows purpuric skin lesions on the trunk and extremities. Urinalysis shows hematuria and proteinuria. Serologic test results are negative for P-ANCAs and C-ANCAs. A skin biopsy specimen shows necrotizing vasculitis of small dermal vessels. A renal biopsy specimen shows immune complex deposition in glomeruli, with some IgA-rich immune complexes. Which of the following is the most likely diagnosis?
Correct Answer: B
Rationale: Henoch-Schönlein purpura features IgA immune complexes, purpura, and glomerulonephritis.
Question 5 of 5
Which one of the following has the longest duration of action?
Correct Answer: B
Rationale: Anistreplase has a longer duration due to its complex with plasminogen.