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

Case Study 25. Alzheimer's Disease

A 62-year-old executive is experiencing difficulty remembering and performing familiar tasks, problems with abstract thinking, and changes in mood and behavior. He is hospitalized for evaluation. The orders from the physician include:

· CT of the brain

· EEG and cerebral blood flow studies

· CBC and electrolytes

· Cerebrospinal fluid analysis

· Urinalysis

· 1000 mL IV D5/0.45% NS to infuse over 8 hr

· Donepezil (Aricept) 5 mg PO HS

· Thioridazine (Mellaril) 25 mg PO tid

· Imipramine (Tofranil) 50 mg PO qid

· Temazepam (Restoril) 7.5 mg PO HS

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.

ANSWER KEY FOR SECTION 3: CASE STUDIES