Which of the following are characteristics of tertiary care?

1.emergency care and specialists

2.very specialized, advanced treatment and research, lower numbers of patients

3.extremely specialized or experimental, lowest numbers of patients

4.first point of care, widest scope, largest number of patients

To avoid food poisoning, perishable items should not be stored in the refrigerator for more than days.

Which of the following best reflects what we know about how the flu virus moves between species? a) the flu virus in a pig is mutated and replicated in alternate arrangements so that humans who eat the pig products can be infected.b) a flu virus from a human epidemic or pandemic infects birds; the birds replicate the virus differently and then pass it back to humans.c) an influenza virus gains new sequences of dna from another virus, such as a herpesvirus; this enables it to be transmitted to a human host.d) an animal such as a pig is infected with more than one virus, genetic recombination occurs, the new virus mutates, the virus is passed to a new species such as a bird, and the virus mutates again and can now be transmitted to humans.

Mary is 14 year old her resting heart rate is 70 beats per minute. calculate 50% of mary's maximum heart rate to fine her target heart rate