Which of the following could be indicative of oxygenation failure? (Multiple Answers)  P(A–a)O2 difference of more than 300 mm Hg on FIO2 100%  PaCO2 of greater than 50 mm Hg  PaO2 of less than 50 mm Hg on FIO2 of 60%  A pH of less than 7.30  PaO2/FIO2 ratio >350 

All of the following would tend to cause hypercapnic respiratory failure except:  

The long-lasting antibody is IgE IgM IgG IgA

A person with no antigens on the red blood cell and both anti-A and anti-B antibodies in the plasma would be considered a universal donor. True False

The correct sequence of Phagocytosis is A.  Chemotaxis >  Adhesion > Ingestion > Maturation > Killing >  Elimination B.   Adhesion > Chemotaxis > Ingestion >  Maturation >  Killing >  Elimination C.  Chemotaxis > Ingestion >  Adhesion >  Maturation >  Killing >  Elimination D. Chemotaxis >  Adhesion >  Ingestion >  Killing >  Maturation >   Elimination

Residual volume of our lung is 500 mL of air.

If you have had the measles, you cannot get them again. This is an example of: natural active immunity.  natural passive immunity. artificial active immunity. artificial passive immunity.

Thymus helps T lymphocytes (T cells) mature using thymosin hormones 

Leukopenia: refers to an excess of white blood cells. is characteristic of people with leukemia. is characteristic of people with AIDS.  refers to an increased number of red blood cells.

T cells: are most important in innate immunity. can release as many as 2,000 antibodies a second. can release poisons that can directly kill cells.  form plasma B cells when activated.