1. Infant respiratory distress syndrome is a conditionfound in premature babies. In IRDS, insufficient surfactant isproduced. The physical changes in premature babies from thiscondition are ______ and would likely cause ______ withoutmedication intervention.

A. increased surface tension and ultimate collapse of alveoli;death

B. Increased alveolar expansion labored expiration

C. Decreased surface tension within the alveoli hyperpnea

D. Decreased alveolar expansion; dyspnea

2. Amy needs a transfusion. She was involved in a caraccident. When she arrived at the hospital, the pathology lab tooka sample of her blood and found that she had both antibodies fortyping but no Rh factor antibodies. What type of blood can Amyreceive to restore her blood volume?

A. Type A negative

B. Type O negative

C. Type B negative

D. two of the above

3. To breath in air, which of the following happensfirst?

A. intrapulmonary pressure drops

B. Thoracic cavity volume decreases

C. diaphragm flattens to increase thoracic volume

D. Intercoastal muscle contract to raise the rib cage

4. A vaccine is effective because

A. the vaccine contains the antibodies necessary to fightinfection

B. The vaccine contains the lymphocytes necessary to fightinfection

C. The vaccine primes the immune response to that secondaryresponse are faster and more effcieiecnt than the primaryresponse

D. B-lyphocytes are unable to mount an immune response the firsttime they are exposed to a new pathogen

5. Which of the following evens occur during ventircularsystole?

A. pressure in the aorta decreases so that arotic recoil canhelp prepare the blood to the body

B. The ventricular pressure increases after contraction

C. Only the pulmonary veins received blood ejected from theheart.

D. Both the aorta and pulmonary trunk receive blood ejected formthe heart

Thank you for your help in advance!