|
|
Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
Vital signs (blood pressure, temperature, pulse rate, respiration rate) should be taken before any drug administration. Patients should be informed not to use tobacco or caffeine at least 30 minutes before their appointment.
Nitroglycerin is used to alleviate various heart-related conditions, and it is also the chief component of dynamite (but mixed in a solid clay base to stabilize it).
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.
Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).
![Cataract extraction. The procedure involves a surgical removal of a cataract lens and its replacemen](https://biology-forums.com/gallery/47/medium_14755_14_10_12_6_37_46_9400219.jpeg)
![U.S. suburbs were once unplanned, rambling affairs that took irregular shapes as people moved away ...](https://biology-forums.com/gallery/28/medium_482573_20_04_17_1_40_00_28021450.png)