A 58-year-old man presents complaining of unsteady gait. Past medical history is significant for diabetes mellitus, gastroparesis, and depression. The patient exhibits a slight shuffling gait, mild limb rigidity, and decreased speed in performing rapid alternating movement. Current daily medications are bupropion, glyburide, metoclopramide, and omeprazole. Which of the following would be the most appropriate initial management for the presenting complaint?

For a 34-year-old Woman with a history of ethanol abuse, cirrhosis, ascites, and jaundice, which of the following is the most important factor predisposing her to hepatorenal syndrome?

A 58-year-old patient is admitted to the hospital with a temperature of 38.3°C, cough, and dyspnea. Rales are present at the left base, and chest X-ray reveals a left lower lobe infiltrate.
Oxygen saturation is 88% on room air. Which of the following antibiotics is most appropriate?

A 69-year-old Woman with chronic liver disease treated with furosemide and potassium chloride for ascites and peripheral edema presents with weakness and fatigue. Her serum laboratory Values are:
* Sodium: 138 mEq/L
* Potassium: 2.6 mEq/L
* Glucose: 88 mg/dL
* BUN: 33 mg/dL
* Chloride: 101 mEq/L
* HCO3- 26 mEq/L
* Creatinine: 1.1 mg/dL
Attempts to increase her serum potassium over the next 48 hours include intravenous replacement (240 mEq over this period), without success. The current serum potassium concentration is 2.8 mEq/L. Which of the following is the most appropriate test to obtain for this patient?

In a clinical trial, when would "intention to treat" analysis be most appropriate?