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Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.
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.
Historic treatments for rheumatoid arthritis have included gold salts, acupuncture, a diet consisting of apples or rhubarb, nutmeg, nettles, bee venom, bracelets made of copper, prayer, rest, tooth extractions, fasting, honey, vitamins, insulin, snow collected on Christmas, magnets, and electric convulsion therapy.
Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.
Everyone has one nostril that is larger than the other.
![A replaceable PROM used in an older General Motors computer. Notice that the sealed access panel ...](https://biology-forums.com/gallery/29/medium_548020_30_05_17_8_05_55_298772489.png)
![Checking the 5 volt reference from the computer being applied to the TP sensor with the ignition ...](https://biology-forums.com/gallery/29/medium_548020_30_05_17_9_30_03_299112183.png)