After the removal of red blood cells from the circulation, hemoglobin is broken down into:

One of the advantages of performing antibody screening (detection) studies using gel technology is:

A seventeen year old girl decides to go on a starvation diet. After one week of starving herself what substance would most likely be found in her urine?

Which of the following constitutes permanent deferral status of a donor?

False results in urobilinogen testing may occur if the urine specimen is:

An example of an organ-specific disease with autoimmune antibodies is:

TSH is produced by the:

A positive niacin test is most characteristic of Mycobacterium:

A first-morning sputum specimen is received for acid-fast culture. The specimen is centrifuged, and the sediment is inoculated on two Lowenstein-Jensen slants that are incubated at 35C in 5%-10% CO2. After 1 week, the slants show abundant growth over the entire surface. Stains reveal gram-negative bacilli. To avoid this problem:

Which of the following inorganic substances are excreted in the urine in the largest amount?