George’s boss experienced cardiac arrest, which caused him to collapse and lose consciousness. He stopped breathing and his skin started to turn blue. What should George do next to best assist his boss? A. He should call 9-1-1 and send someone to get an AED, then perform CPR.
B. He should perform CPR only.
C. He should wait for someone to get him help.
D. He should run to the hospital near by for help.

Knowing if a patient has tuberculosis, hepatitis b, or aids is important because a. serious illnesses should be avoided. b. they could compromise the vital sign readings. c. cross-infection may occur. d. they can't be cured.

In 2009, a flu pandemic was believed to have originated when viral transmission occurred from pig to human, thereby earning the designation, "swine flu." although pigs are thought to have been the breeding ground for the 2009 virus, sequences from bird, pig, and human viruses were all found within this newly identified virus. what is the most likely explanation of why this virus contained sequences from bird, pig, and human viruses? a) the virus was descended from a common ancestor of bird, pig, and human flu viruses.b) the infected individuals happened to be infected with all three virus types.c) related viruses can undergo genetic recombination if the rna genomes mix and match during viral assembly.d) the human was likely infected with various bacterial strains that contained all three rna viruses.

High blood pressure is best described as