A 4-Year-Old Boy Is Being Evaluated for Failure to Thrive

question 14

Multiple Choice

A 4-year-old boy is being evaluated for failure to thrive, shortness of breath, and exercise intolerance.  The parents first became aware of his symptoms after the patient started preschool a few weeks ago.  His teacher mentioned that the patient seemed to tire faster than the other children when playing outside.  Cardiac examination shows bounding peripheral pulses and a palpable thrill below the clavicle near the left upper sternal border.  On auscultation, a continuous murmur is best heard over the same region.  After discussion with the parents, a thoracotomy is scheduled to correct the patient's condition.  During the procedure, the surgeon should plan on ligating a derivative of which of the following embryologic structures?

• A)Bulbus cordis
• B)Fourth aortic arch
• C)Primitive atria
• D)Sinus venosus
• E)Sixth aortic arch

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Definitions:

Work In Process

Items that are in the process of being produced but are not yet finished goods.

Direct Materials

Raw materials used directly in the production of a product, whose costs are easily traced to that product.

First-In, First-Out

An accounting method where the earliest acquired goods are sold or used first.

Conversion Cost Per Equivalent Unit

This is the cost incurred during the manufacture of a product that includes both direct labor and manufacturing overhead costs, divided by the number of equivalent units produced.