Laboratory Results Come Back on a Newly Admitted Patient

question 23

Multiple Choice

Laboratory results come back on a newly admitted patient.They are as follows: serum BUN, 64 mg/dL; serum creatinine, 2.4 mg/dL; urine osmolality, 210 mOsm/kg; specific gravity, 1.002; and urine sodium, 96 mEq/L.The urine output has been 120 mL since admission 2 hours ago.These values are most consistent with which of the following diagnoses?

• A) Prerenal failure
• B) Postrenal failure
• C) Oliguric renal failure
• D) Acute kidney injury (AKI)

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Definitions:

M&M Proposition

The Modigliani-Miller Proposition argues that in an ideal market, the value of a firm is unaffected by how it is financed, whether through debt or equity.

Capital Structure Weights

The proportions of a company's financing derived from different sources, such as debt and equity, used in calculating the cost of capital.

Levered Firm

A company that uses debt in addition to equity in its capital structure, often to finance operations and grow.

Unlevered Firm

A business that operates without any debt financing, using only equity for its operations and investments.