Substituting a Cryo-Preserved Cadaveric Vein or an in Situ or Reversed

question 15

Multiple Choice

Substituting a cryo-preserved cadaveric vein or an in situ or reversed vein graft from the patient for an arterial bypass graft is an option for patients who have healthy,easily accessed saphenous veins.How does an in situ vein graft differ from a reversed vein graft?

• A) With the in situ method,the vein segment is resected,reversed,and anastomosed into position.
• B) The in situ method leaves the vein in its position and the valves are removed.
• C) Arteriovenous fistulas are a common complication with the reversed vein graft method.
• D) Valvulotomes are used to remove the valves in both methods.

---

Definitions:

Public Goods

Goods that are non-rivalrous and non-excludable, meaning they can be used by everyone without preventing others from using them too.

Unregulated Market

A market where economic activities are not controlled by government policies or restrictions.

Imperfect Information

A market condition where all parties do not have equal access to all relevant information, leading to inefficiencies.

Market Failure

A situation where the allocation of goods and services by a free market is not efficient, often leading to a net social welfare loss.