Through a combination of hardware and software, a ________ may be able to "see" via video devices and to "hear" through microphones using speech-recognition software.

A sample has the following test results: hemoglobin 9 g/dL, autohemolysis increased after 48 hours, and increased hemolysis observed with the Ham test and sucrose hemolysis test. Based on these findings, what is the patient most likely suffering from?

a. HS b. HE c. PNH d. PCH

What color are the nitrogen tank and the oxygen tank in the dental office?

green, blue blue, yellow blue, green blue, orange