Which route of administration that is applied directly to the skin delivers medication directly into the bloodstream?

The respiratory system functions by:

A: sending messages to the diaphragm that cause it to contract. B: removing carbon dioxide from the cells and returning it to the lungs. C: ensuring that adequate oxygen is delivered to the body's tissues. D: bringing oxygen into the lungs and eliminating carbon dioxide.

Mark Anthony is a patient at Valley Nursing Home. Over the last three weeks, the staff has noticed that he has lost interest in playing cards and social hour. These are activities that he regularly has attended since being admitted to the nursing home. The physician was asked to speak to Mark about this and concluded that besides his presenile dementia, which was diagnosed previously, Mark is now

experiencing depressive features. Select the appropriate code(s). 290.0 Senile dementia, uncomplicated 290.10 Presenile dementia, uncomplicated 290.13 Presenile dementia, with depressive features 309.0 Acute depressive reaction 311 Depression A) 290.10, 311 B) 290.0, 309.0 C) 290.10, 311 D) 290.13