Clinical Calculations Made Easy: Solving Problems Using Dimensional Analysis, 3rd Edition

Case Study 10. Cirrhosis

A patient is admitted to the hospital with ascites, stomach pain, dyspnea, and a history of cirrhosis of the liver. The orders from the physician include:

· IV D5W/½ NS with 20 mEq KCl at 125 cc/hr

· IV Zantac 150 mg/250 cc NS at 11 cc/hr

· O₂ at 2 L/min per nasal cannula

· Type and crossmatch for 2 units of packed red blood cells, complete blood count, liver panel, PT/PTT, SMA-12.

· Carafate 1 g q4h PO

· Vitamin K 10 mg SQ qAM

· Spironolactone 50 mg PO bid

· Lasix 80 mg IV qAM

· Measure abdominal girth qAM

· Sodium restriction to 500 mg/day

· Fluid restriction to 1500 cc/day

Identify the orders that require calculations.

Set up and solve each problem using dimensional analysis.

1.

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2.

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3.

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4.

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5.