ATI RN
100 Questions on the Cardiovascular System PDF Questions
Question 1 of 5
Which of the following is not an example of hemostasis?
Correct Answer: B
Rationale: Temperature regulation (B) is unrelated to hemostasis (stopping blood loss).
Question 2 of 5
In the renin-angiotensin-aldosterone mechanism,
Correct Answer: C
Rationale: Aldosterone (C) increases sodium reabsorption, raising BP. Renin is from kidneys (not liver, A), aldosterone reduces urine output (not B), so only C is true.
Question 3 of 5
The layer secretes chemicals that help to regulate ionic environments and strength of contraction and serve as powerful vasoconstrictors.
Correct Answer: B
Rationale: The endocardium (B), via endothelial cells, secretes substances (e.g., endothelins) affecting ions, contraction, and vasoconstriction. Others (A, C, D) don’t secrete these.
Question 4 of 5
What happens to preload when there is venous constriction in the veins?
Correct Answer: A
Rationale: Venous constriction increases venous return, raising preload (A), the initial stretch on the ventricle.
Question 5 of 5
Which of the following is the priority nursing intervention for a client who is receiving adenosine (Adenocard) for supraventricular tachycardia (SVT)?
Correct Answer: C
Rationale: Adenosine (C) requires a patent IV in a large vein (antecubital) due to its short half-life, making it the priority. Others (A, B, D) are secondary.