ATI RN
Cardiovascular System Quiz Questions Questions
Question 1 of 5
Bob has a hemoglobin measurement of 15 g per 100 mL (or 1 dL) of blood. This is:
Correct Answer: A
Rationale: Normal hemoglobin levels are 13.5-17.5 g/dL for men and 12-15.5 g/dL for women. Assuming Bob is male (typical default in such questions), 15 g/dL is within normal limits; if female, it’s still normal.
Question 2 of 5
This about second heart sound is incorrect
Correct Answer: D
Rationale: The second heart sound (S₂) results from semilunar valve closure (aortic and pulmonary) at the start of diastole and can split due to asynchronous closure (A and C are true). S₁ (AV valve closure) is longer and lower-pitched (~0.14s) than S₂ (~0.11s), making D incorrect as S₂ is shorter, not longer.
Question 3 of 5
A client has undergone percutaneous coronary intervention (PCI) for the management of acute coronary syndrome. Following the procedure, the client develops a retroperitoneal hemorrhage. Which of the following nursing interventions is necessary if this occurs?
Correct Answer: D
Rationale: Retroperitoneal hemorrhage post-PCI requires notifying the provider and preparing for a CT scan or blood transfusion (D) to diagnose and treat bleeding, which can cause hypotension. Intubation (A) is unrelated, ambulation (B) worsens bleeding, and back pressure (C) is ineffective for internal hemorrhage. (Source: Document, p. 8-9)
Question 4 of 5
The atrioventricular (AV) node is important for heart function because:
Correct Answer: D
Rationale: The AV node delays the impulse (C, ~0.1s) to allow atrial contraction before ventricular systole and directs it to the ventricles via the bundle of His (A). It’s not the pacemaker (B, that’s the SA node), so E (A and C) is correct.
Question 5 of 5
What structures anchor the AV (atrioventricular) valves to the walls of the ventricles?
Correct Answer: C
Rationale: Chordae tendineae (C) anchor AV valves (tricuspid, mitral) to papillary muscles in the ventricles, preventing prolapse into atria. The septum (A) divides ventricles, auricles (B) are atrial appendages, and endocardium (D) is the inner lining.