The LPN is caring for a person who is receiving platelets. The person asks the nurse why the infusion is so cold. What should be included in the nurse’s response? 1. The recipient is less likely to develop an allergic reaction if the infusion is cold. 2. The infusion hurts less when it is cold. 3. Bleeding will be less of a problem when the infusion is cold. 4. Platelets have to be stored frozen in order to remain effective.

Explain the significance of the increased cell specialization of the volvocine line

Which term describes a normal value for something in the body? a. homeostasis b. set point c. feedback loop d. integration center

The kidney filters potentially toxic substances in the blood, and thus “clears” the blood of those substances. this clearance function is dependent upon and proportional to the diffusion gradient of the substance across filtering capillaries, i. e. if the concentration of the substance is doubled, twice as much will be cleared from each ml of blood that is filtered. suppose that the body produces a constant amount of a substance x per unit of time. the kidneys eliminate substance x at a rate directly proportional to the concentration of the substance and the volume of blood cleared each minute (c): elimination = c × [x], where [x] is the steady-state concentration of substance x. imagine an individual with an initial concentration of x equal to [x]0 who develops kidney disease. her baseline clearance c0 drops to one half of the original (½c0). what is the new steady state concentration of x? (for simplicity, assume that substance x is 100% filtered by the kidney).