A Patient Needs a Pacemaker,and the Cardiologist Plans to Run

question 5

Multiple Choice

A patient needs a pacemaker,and the cardiologist plans to run the pacemaker electrode into the right atrium via the left subclavian vein.As the cardiologist monitors the placement of the catheter using angiography,he discovers that the catheter will not enter the superior vena cava.Rather,it enters the coronary sinus and then the right atrium.How is this possible?

• A) Right supracardinal venous system did not regress during development.
• B) Patient has a left superior vena cava.
• C) Patient has a patent foramen ovale.
• D) Ligamentum venosum failed to close.
• E) Patient has a patent ductus arteriosus.

---

Definitions:

Immature

Refers to someone or something that is not fully developed, often characterized by a lack of emotional or physical growth, or in the case of objects, incomplete development or construction.

Needy

Refers to requiring attention, support, or resources more than what is considered normal or sufficient.

Altruistic Ethical Overtones

Describes actions or decision-making that prioritize the welfare of others and are driven by a moral concern for the well-being of all.

Servant Leadership

A leadership philosophy which states that the primary goal of the leader is to serve. This is different from traditional leadership where the leader's main focus is the thriving of their company or organizations.