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Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.

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Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

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The human body produces and destroys 15 million blood cells every second.

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Lower drug doses for elderly patients should be used first, with titrations of the dose as tolerated to prevent unwanted drug-related pharmacodynamic effects.

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Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.

The biological process of nitrogen fixation The biological process of nitrogen fixation
The human birth process as an example of positive feedback. The human birth process as an example of positive feedback.
Five step nursing process Five step nursing process
Cross functional Process Flow Diagram Cross functional Process Flow Diagram
This headache remedy was “guaranteed” by the drug company; 1906. This headache remedy was “guaranteed” by the drug company; 1906.
Condyle process Condyle process
Video: Structures that affect circulation - arterioles and vasomotor responses and venous return

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