In a noncompetitive ELISA, if a negative control shows the presence of signal, which of the following might be a possible explanation?

A patient has the following blood gas test results “decreased pH, increased pCO2, normal HCO3.” Which condition best describes these results?

Macrophages produce which of the following proteins?

A cardiac troponin following a myocardial infarction will be elevated within how many hours of onset?

A patient with which of the following conditions is most likely to have a decreased platelet count?

A pre-analytical error can be introduced by:

A laboratory has just undergone an accreditation inspection in which peers from an out-of-state facility performed the inspection.  Their focus was on both compliance with regulations as well as education.  Which of the following is the organization that performed the inspection?

This antigen marker is an indicator of viral replication and high infectivity in a HBV infection.

If 0.25mL of sample is diluted to make a total volume of 20 mL, what is the resulting dilution?

A 4-year old boy patient was seen by his primary physician after two days of severe diarrhea.  Stool cultures were ordered and three consecutive samples contained significant blood and mucus.  During the history and physical it was noted the family had eaten at a fast food restaurant three days prior and mom threw her hamburger away because it was too undercooked for her to eat, but she did not think to check with her son who ate his entire hamburger Stool culture results:XLD agar = yellow coloniesHE agar = orange coloniesMAC agar = dark pinkSMAC = few dark pink colonies, many clear to very faint pink colonies Based on these results, what is the most likely organism?