Interpret the Following Results: • Specimen: Cerebrospinal Fluid (CSF)

question 4

Multiple Choice

Interpret the following results: • Specimen: cerebrospinal fluid (CSF)
• Tubes sent: 1-4
O Tube 1 RBC count: 30,000/mcL
O Tube 2 RBC count: 1500/mcL
O Tube 3 RBC count: 200/mcL
O Tube 4 RBC count: 4/mcL
• Gross examination:
O Tube 1: moderate hemolysis, clear
O Tube 2: slight hemolysis, clear
O Tube 3: no hemolysis, clear
O Tube 4: no hemolysis, clear
• Xanthochromia: absent in all four tubes
• Microscopic findings:
O Many intact RBCs
O 0-5 neutrophils
O 0-5 lymphocytes
O 0-5 MNCs
What do these data most likely represent?

• A) A cerebral hemorrhage
• B) A traumatic specimen collection
• C) A possible infection in the CSF
• D) A bacterial contamination from an external source

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Definitions:

360-Day Year

A simplified accounting method where the year is assumed to have only 360 days for the purpose of interest calculations.

Exact Interest

Interest calculation method based on a 365-day year or actual number of days in a loan period.

365-Day Year

A method of computing interest where the basis for the calculation is a full 365-day year, used to give a more precise daily rate.

360-Day Year

An accounting practice assuming twelve 30-day months, used for simplicity in calculations and financial models.