A Patient Showing Symptoms of Impaired Renal Function Has a Battery

question 67

Multiple Choice

A patient showing symptoms of impaired renal function has a battery of tests performed.Results are:
Serum creatinine: 2.0 mg/dL
Urine creatinine: 150 mg/dL
Serum osmolality: 270 mOsm
Urine osmolality: 100 mOsm
24-hour urine volume: 2000 mL
-Based on the information provided,calculate the free water clearance.

• A) -0.5
• B) -1.0
• C) +0.6
• D) +0.9

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Definitions:

Fixed Costs

Expenses that do not change in relation to the volume of production or sales, such as rent, salaries, and insurance.

Operating Leverage

A measure of the relative mix of a business’s variable costs and fixed costs, computed as contribution margin divided by operating income.

Highly Automated Industries

Sectors where machines and advanced technologies preponderantly perform production and operational processes, reducing human intervention.

Break-even Point

The point at which total revenues equal total costs and expenses, leaving no net loss or gain.