Which of the Following Statements Describe Truncus Arteriosus

question 16

Multiple Choice

Which of the following statements describe truncus arteriosus?
I. It is a rare defect in which a single great artery arises from the ventricles of the heart.
II. If PVR increases relative to systemic vascular resistance (SVR) , more blood flows to the lungs through the truncus, decreasing systemic cardiac output.
III. Oxygen should be avoided in almost all circumstances in the preoperative setting.
IV. Patients may undergo complete biventricular repair in the newborn period.

• A) I and III only
• B) II and IV only
• C) I, II, and IV only
• D) I, III, and IV only

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Definitions:

Carbonyl Group

A functional group consisting of a carbon atom double-bonded to an oxygen atom (C=O).

Functional Groups

Specific atomic groupings within molecules that are key to the molecules' distinctive chemical reactions.

Ether

An organic compound characterized by an oxygen atom connected to two alkyl or aryl groups, with a general formula of R-O-R'.

Functional Group

Selected atom arrangements in molecules that are crucial for the unique chemical reactions those molecules perform.