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A 58-year old female was seen by her primary care physician with chief complaints of fatigue, hair loss, dry skin, and cold intolerance. Her laboratory results correlate with which of the following diseases?             TSH                  5.9 mIU/L (0.4-4.0)             T4                    4.0 µg/dL (5.0-10.0)

Given the following results, what is the calculated A/G ratio? Total protein      6.5 g/dL  Albumin            3.5 g/dL

What is the specimen of choice for a quantitative fecal fat analysis?

What is the body’s feedback mechanism when there is decreased thyroid hormone production?

Which of the following pre-analytical errors is most likely to cause a falsely elevated plasma ammonia result?

A urinalysis showed a positive result for reducing sugars, yet the glucose (glucose oxidase reaction) test was negative on the dipstick. What do these results suggest?

Hormones produced in the hypothalamus but stored and released by the posterior pituitary include which of the following?

What is the primary function of the enzyme Lecithin-Cholesterol Acyltransferase (LCAT) within the reverse cholesterol transport pathway?

What is the most likely explanation for the following lipid panel results?             Triglycerides                             97 mg/dL             Total Cholesterol                       80 mg/dL             HDL Cholesterol                        5 mg/dL

Which enzyme deficiency is an inherited sex-linked trait that can lead to hemolytic episodes when the individual is exposed to certain drugs or oxidative stress?