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A 74 year old presented with acute painful swelling in the right leg following a cross country airplane flight. The patient has had persistent prolonged aPTTs of 89 seconds, 85 seconds, and 95 seconds, which correct with a mixing study, suggesting a factor deficiency. The patient has no history of bleeding despite several previous surgeries. The results of the aPTTs indicate a likely deficiency in:

A serum sample demonstrates an elevated result when tested using the Jaffe reaction. This indicates:

How many ml of a 2000 mg/dL glucose stock solution is needed to prepared 100 mL of a 150 mg/dL glucose working standard?

Three tubes of CSF are collected, labeled, and sent to the laboratory for testing. Which tube should be used for chemical analysis, such as total protein and glucose?

This type of disorder would show a decrease in C3, C4, and CH50.

A xanthochromic CSF specimen is centrifuged resulting in a pink-colored supernatant. This indicates the presence of:

Using the information from the Question #2 above, calculate the debt to assets ratio for the Memorial Union. Put the answer in percentage form (no percentage symbol needed) and round to two decimal places.   Example .3456 would be entered as 34.56.

**Partial Credit Problem**  (8 points total) Will need to be documented in video of HonorLock before closing the exam to earn full credit.   For the function

The amount of items that can be produced depends on the amount of raw materials x and y required to make the product.  The amount can be modeled by the  multivariable function (make sure your calculator is in Radian mode)

For the following choose the most appropriate answer. Suppose you build a campfire.  The heat measure is F when you start the fire.  Let   be the temperature in degrees Fahrenheit x feet from the fire t minutes after you start it.  The figure shows the contour diagram for H, with contours at H = 45, 55, 65 and 75 degrees.  1)  True or False:  From the contour diagram we can estimate