An RN in a long-term care facility oversees the care of 15 patients. He observes precautions to control and prevent the spread of infection.

What is the principle of the guaiac-based fecal occult blood test (gFOBT)?

Which substance can cause falsely negative reactions for glucose and for blood by interfering with hydrogen peroxide?

If a stool sample contains only degraded hemoglobin, would this produce a false positive or a false negative result on a guaiac-based fecal occult blood test (gFOBT)?

Which of the following can cause a false postive nitrite result?

A 47-year-old male and father of five works as a high school English teacher. He recently read in the community newspaper that local sewage is treated and repurposed to the community as drinking water. His senior English class is concerned about the quality of drinking water in the city and they want to petition the state senate to pass a bill barring the practice. He comes to the local health department asking for information.

Which immune cell type is primarily responsible for producing antibodies in response to the chickenpox virus? 

All of the following are considered functions of the kidney EXCEPT?

The presence of a few waxy casts is considered normal?

Identify the epithelial cell found most often in a urine microscopic exam.