A Researcher Is Conducting an Experiment to Determine Factors Affecting

question 247

Multiple Choice

A researcher is conducting an experiment to determine factors affecting vascular resistance.  Experiment animals are anesthetized, intubated, and attached to a controlled ventilation system.  A catheter is placed into a small artery in various organs in each animal.  The catheter is connected to a manometer for recording pressure and to an oximeter for continuous recording of oxygen saturation.  The fraction of inspired oxygen is gradually changed, and arteriolar resistance is calculated from the manometer readings at regular intervals.  The results shown below were most likely obtained from which of the following organs?

• A)Brain
• B)Heart
• C)Kidneys
• D)Lungs
• E)Small intestine

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Definitions:

Standard Quantity

The predetermined or budgeted amount of materials expected to be used in the production of a product, based on efficiency and productivity standards.

Variable Overhead Efficiency Variance

The difference between the actual hours taken to produce a good and the standard hours expected, multiplied by the variable overhead rate.

Excessive Inventories

A situation where a company holds more stock items than necessary, leading to increased storage costs and potential wastage.

Materials Price Variance

This measures the difference between the actual cost of materials used in production and the standard cost expected for those materials, indicating how efficiently an organization is purchasing materials.