ATI RN
100 Questions on the Cardiovascular System PDF Questions
Question 1 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 2 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 3 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.
Question 4 of 5
The registered nurse is preparing to delegate assignments for the day. Which of the following assignments would be appropriate to delegate to a licensed practical nurse?
Correct Answer: D
Rationale: An LPN can take BP before verapamil (D), within their scope. Contacting a physician (A), monitoring heparin levels (B), and questioning streptokinase (C) require RN judgment.
Question 5 of 5
Which are the major lymphatic organs?
Correct Answer: B
Rationale: Major lymphatic organs include the thymus (T-cell maturation), spleen (lymphocyte storage and blood filtering), and tonsils (immune surveillance). The liver and pituitary are not lymphatic; tonsils are often included as secondary lymphoid tissue.